diff --git a/modules/alias.py b/modules/alias.py
index 5053783..5aae6bb 100644
--- a/modules/alias.py
+++ b/modules/alias.py
@@ -185,7 +185,7 @@ def cmd_listvars(msg):
 def cmd_set(msg):
     if len(msg.args) < 2:
         raise IMException("!set take two args: the key and the value.")
-    set_variable(msg.args[0], " ".join(msg.args[1:]), msg.nick)
+    set_variable(msg.args[0], " ".join(msg.args[1:]), msg.frm)
     return Response("Variable $%s successfully defined." % msg.args[0],
                     channel=msg.channel)
 
@@ -222,13 +222,13 @@ def cmd_alias(msg):
 
     if alias.cmd in context.data.getNode("aliases").index:
         return Response("%s corresponds to %s" % (alias.cmd, context.data.getNode("aliases").index[alias.cmd]["origin"]),
-                        channel=msg.channel, nick=msg.nick)
+                        channel=msg.channel, nick=msg.frm)
 
     elif len(msg.args) > 1:
         create_alias(alias.cmd,
                      " ".join(msg.args[1:]),
                      channel=msg.channel,
-                     creator=msg.nick)
+                     creator=msg.frm)
         return Response("New alias %s successfully registered." % alias.cmd,
                         channel=msg.channel)
 
diff --git a/modules/birthday.py b/modules/birthday.py
index cb850ac..7a9cdaa 100644
--- a/modules/birthday.py
+++ b/modules/birthday.py
@@ -27,7 +27,7 @@ def load(context):
 def findName(msg):
     if (not len(msg.args) or msg.args[0].lower() == "moi" or
         msg.args[0].lower() == "me"):
-        name = msg.nick.lower()
+        name = msg.frm.lower()
     else:
         name = msg.args[0].lower()
 
@@ -77,7 +77,7 @@ def cmd_anniv(msg):
     else:
         return Response("désolé, je ne connais pas la date d'anniversaire"
                         " de %s. Quand est-il né ?" % name,
-                        msg.channel, msg.nick)
+                        msg.channel, msg.frm)
 
 
 @hook.command("age",
@@ -98,7 +98,7 @@ def cmd_age(msg):
                         msg.channel)
     else:
         return Response("désolé, je ne connais pas l'âge de %s."
-                        " Quand est-il né ?" % name, msg.channel, msg.nick)
+                        " Quand est-il né ?" % name, msg.channel, msg.frm)
     return True
 
 
@@ -113,11 +113,11 @@ def parseask(msg):
             if extDate is None or extDate.year > datetime.now().year:
                 return Response("la date de naissance ne paraît pas valide...",
                                 msg.channel,
-                                msg.nick)
+                                msg.frm)
             else:
                 nick = res.group(1)
                 if nick == "my" or nick == "I" or nick == "i" or nick == "je" or nick == "mon" or nick == "ma":
-                    nick = msg.nick
+                    nick = msg.frm
                 if nick.lower() in context.data.index:
                     context.data.index[nick.lower()]["born"] = extDate
                 else:
@@ -129,6 +129,6 @@ def parseask(msg):
                 return Response("ok, c'est noté, %s est né le %s"
                                 % (nick, extDate.strftime("%A %d %B %Y à %H:%M")),
                                 msg.channel,
-                                msg.nick)
+                                msg.frm)
         except:
             raise IMException("la date de naissance ne paraît pas valide.")
diff --git a/modules/events.py b/modules/events.py
index a35c28b..0cc5a44 100644
--- a/modules/events.py
+++ b/modules/events.py
@@ -69,7 +69,7 @@ def start_countdown(msg):
     strnd = ModuleState("strend")
     strnd["server"] = msg.server
     strnd["channel"] = msg.channel
-    strnd["proprio"] = msg.nick
+    strnd["proprio"] = msg.frm
     strnd["start"] = msg.date
     strnd["name"] = msg.args[0]
     context.data.addChild(strnd)
@@ -145,17 +145,17 @@ def end_countdown(msg):
         raise IMException("quel événement terminer ?")
 
     if msg.args[0] in context.data.index:
-        if context.data.index[msg.args[0]]["proprio"] == msg.nick or (msg.cmd == "forceend" and msg.frm_owner):
+        if context.data.index[msg.args[0]]["proprio"] == msg.frm or (msg.cmd == "forceend" and msg.frm_owner):
             duration = countdown(msg.date - context.data.index[msg.args[0]].getDate("start"))
             context.del_event(context.data.index[msg.args[0]]["_id"])
             context.data.delChild(context.data.index[msg.args[0]])
             context.save()
             return Response("%s a duré %s." % (msg.args[0], duration),
-                            channel=msg.channel, nick=msg.nick)
+                            channel=msg.channel, nick=msg.frm)
         else:
             raise IMException("Vous ne pouvez pas terminer le compteur %s, créé par %s." % (msg.args[0], context.data.index[msg.args[0]]["proprio"]))
     else:
-        return Response("%s n'est pas un compteur connu."% (msg.args[0]), channel=msg.channel, nick=msg.nick)
+        return Response("%s n'est pas un compteur connu."% (msg.args[0]), channel=msg.channel, nick=msg.frm)
 
 
 @hook.command("eventslist")
@@ -180,7 +180,7 @@ def parseanswer(msg):
 
     # Avoid message starting by ! which can be interpreted as command by other bots
     if msg.cmd[0] == "!":
-        res.nick = msg.nick
+        res.nick = msg.frm
 
     if context.data.index[msg.cmd].name == "strend":
         if context.data.index[msg.cmd].hasAttribute("end"):
@@ -223,7 +223,7 @@ def parseask(msg):
         evt = ModuleState("event")
         evt["server"] = msg.server
         evt["channel"] = msg.channel
-        evt["proprio"] = msg.nick
+        evt["proprio"] = msg.frm
         evt["name"] = name.group(1)
         evt["start"] = extDate
         evt["msg_after"] = msg_after
@@ -237,7 +237,7 @@ def parseask(msg):
         evt = ModuleState("event")
         evt["server"] = msg.server
         evt["channel"] = msg.channel
-        evt["proprio"] = msg.nick
+        evt["proprio"] = msg.frm
         evt["name"] = name.group(1)
         evt["msg_before"] = texts.group (2)
         context.data.addChild(evt)
diff --git a/modules/mapquest.py b/modules/mapquest.py
index 55b87c0..1caa41c 100644
--- a/modules/mapquest.py
+++ b/modules/mapquest.py
@@ -55,7 +55,7 @@ def cmd_geocode(msg):
     if not len(msg.args):
         raise IMException("indicate a name")
 
-    res = Response(channel=msg.channel, nick=msg.nick,
+    res = Response(channel=msg.channel, nick=msg.frm,
                    nomore="No more geocode", count=" (%s more geocode)")
 
     for loc in geocode(' '.join(msg.args)):
diff --git a/modules/reddit.py b/modules/reddit.py
index 7d481b7..31f566c 100644
--- a/modules/reddit.py
+++ b/modules/reddit.py
@@ -64,7 +64,7 @@ def cmd_subreddit(msg):
                                         channel=msg.channel))
         else:
             all_res.append(Response("%s is not a valid subreddit" % osub,
-                                    channel=msg.channel, nick=msg.nick))
+                                    channel=msg.channel, nick=msg.frm))
 
     return all_res
 
diff --git a/modules/rnd.py b/modules/rnd.py
index 5329b06..6044bd4 100644
--- a/modules/rnd.py
+++ b/modules/rnd.py
@@ -21,7 +21,7 @@ def cmd_choice(msg):
 
     return Response(random.choice(msg.args),
                     channel=msg.channel,
-                    nick=msg.nick)
+                    nick=msg.frm)
 
 
 @hook.command("choicecmd")
diff --git a/modules/sms.py b/modules/sms.py
index 3a9727f..61e63d6 100644
--- a/modules/sms.py
+++ b/modules/sms.py
@@ -73,9 +73,9 @@ def cmd_sms(msg):
             fails.append( "%s: %s" % (u, test) )
 
     if len(fails) > 0:
-        return Response("quelque chose ne s'est pas bien passé durant l'envoi du SMS : " + ", ".join(fails), msg.channel, msg.nick)
+        return Response("quelque chose ne s'est pas bien passé durant l'envoi du SMS : " + ", ".join(fails), msg.channel, msg.frm)
     else:
-        return Response("le SMS a bien été envoyé", msg.channel, msg.nick)
+        return Response("le SMS a bien été envoyé", msg.channel, msg.frm)
 
 apiuser_ask = re.compile(r"(utilisateur|user|numéro|numero|compte|abonne|abone|abonné|account)\s+(est|is)\s+(?P<user>[0-9]{7,})", re.IGNORECASE)
 apikey_ask = re.compile(r"(clef|key|password|mot de passe?)\s+(?:est|is)?\s+(?P<key>[a-zA-Z0-9]{10,})", re.IGNORECASE)
@@ -94,18 +94,18 @@ def parseask(msg):
             test = send_sms("nemubot", apiuser, apikey,
                             "Vous avez enregistré vos codes d'authentification dans nemubot, félicitation !")
             if test is not None:
-                return Response("je n'ai pas pu enregistrer tes identifiants : %s" % test, msg.channel, msg.nick)
+                return Response("je n'ai pas pu enregistrer tes identifiants : %s" % test, msg.channel, msg.frm)
 
-            if msg.nick in context.data.index:
-                context.data.index[msg.nick]["user"] = apiuser
-                context.data.index[msg.nick]["key"] = apikey
+            if msg.frm in context.data.index:
+                context.data.index[msg.frm]["user"] = apiuser
+                context.data.index[msg.frm]["key"] = apikey
             else:
                 ms = ModuleState("phone")
-                ms.setAttribute("name", msg.nick)
+                ms.setAttribute("name", msg.frm)
                 ms.setAttribute("user", apiuser)
                 ms.setAttribute("key", apikey)
                 ms.setAttribute("lastuse", 0)
                 context.data.addChild(ms)
             context.save()
             return Response("ok, c'est noté. Je t'ai envoyé un SMS pour tester ;)",
-                            msg.channel, msg.nick)
+                            msg.channel, msg.frm)
diff --git a/modules/spell/__init__.py b/modules/spell/__init__.py
index a70b016..c15f5fc 100644
--- a/modules/spell/__init__.py
+++ b/modules/spell/__init__.py
@@ -64,15 +64,15 @@ def cmd_spell(msg):
             raise IMException("Je n'ai pas le dictionnaire `%s' :(" % lang)
 
         if r == True:
-            add_score(msg.nick, "correct")
+            add_score(msg.frm, "correct")
             res.append_message("l'orthographe de `%s' est correcte" % word)
 
         elif len(r) > 0:
-            add_score(msg.nick, "bad")
+            add_score(msg.frm, "bad")
             res.append_message(r, title="suggestions pour `%s'" % word)
 
         else:
-            add_score(msg.nick, "bad")
+            add_score(msg.frm, "bad")
             res.append_message("aucune suggestion pour `%s'" % word)
 
     return res
diff --git a/modules/virtualradar.py b/modules/virtualradar.py
index ffd5a67..d7448ce 100644
--- a/modules/virtualradar.py
+++ b/modules/virtualradar.py
@@ -80,7 +80,7 @@ def cmd_flight(msg):
     if not len(msg.args):
         raise IMException("please indicate a flight")
 
-    res = Response(channel=msg.channel, nick=msg.nick,
+    res = Response(channel=msg.channel, nick=msg.frm,
                    nomore="No more flights", count=" (%s more flights)")
 
     for param in msg.args:
diff --git a/modules/weather.py b/modules/weather.py
index 8b3540e..8c9ca0e 100644
--- a/modules/weather.py
+++ b/modules/weather.py
@@ -220,4 +220,4 @@ def parseask(msg):
             context.data.addChild(ms)
         context.save()
         return Response("ok, j'ai bien noté les coordonnées de %s" % res.group("city"),
-                        msg.channel, msg.nick)
+                        msg.channel, msg.frm)
diff --git a/modules/whois.py b/modules/whois.py
index fb6d250..ae27ccc 100644
--- a/modules/whois.py
+++ b/modules/whois.py
@@ -152,7 +152,7 @@ def parseask(msg):
         nick = res.group(1)
         login = res.group(3)
         if nick == "my" or nick == "I" or nick == "i" or nick == "je" or nick == "mon" or nick == "ma":
-            nick = msg.nick
+            nick = msg.frm
         if nick in context.data.getNode("aliases").index:
             context.data.getNode("aliases").index[nick]["to"] = login
         else:
@@ -164,4 +164,4 @@ def parseask(msg):
         return Response("ok, c'est noté, %s est %s"
                         % (nick, login),
                         channel=msg.channel,
-                        nick=msg.nick)
+                        nick=msg.frm)
diff --git a/modules/worldcup.py b/modules/worldcup.py
index 7b4f53d..ff3e0c4 100644
--- a/modules/worldcup.py
+++ b/modules/worldcup.py
@@ -32,7 +32,7 @@ def start_watch(msg):
     w = ModuleState("watch")
     w["server"] = msg.server
     w["channel"] = msg.channel
-    w["proprio"] = msg.nick
+    w["proprio"] = msg.frm
     w["start"] = datetime.now(timezone.utc)
     context.data.addChild(w)
     context.save()
diff --git a/nemubot/bot.py b/nemubot/bot.py
index aa1cb3e..6327afe 100644
--- a/nemubot/bot.py
+++ b/nemubot/bot.py
@@ -92,7 +92,7 @@ class Bot(threading.Thread):
 
         def in_echo(msg):
             from nemubot.message import Text
-            return Text(msg.nick + ": " + " ".join(msg.args), to=msg.to_response)
+            return Text(msg.frm + ": " + " ".join(msg.args), to=msg.to_response)
         self.treater.hm.add_hook(nemubot.hooks.Command(in_echo, "echo"), "in", "Command")
 
         def _help_msg(msg):
diff --git a/nemubot/channel.py b/nemubot/channel.py
index a070131..835c22f 100644
--- a/nemubot/channel.py
+++ b/nemubot/channel.py
@@ -52,11 +52,11 @@ class Channel:
         elif cmd == "MODE":
             self.mode(msg)
         elif cmd == "JOIN":
-            self.join(msg.nick)
+            self.join(msg.frm)
         elif cmd == "NICK":
-            self.nick(msg.nick, msg.text)
+            self.nick(msg.frm, msg.text)
         elif cmd == "PART" or cmd == "QUIT":
-            self.part(msg.nick)
+            self.part(msg.frm)
         elif cmd == "TOPIC":
             self.topic = self.text
 
@@ -120,17 +120,17 @@ class Channel:
             else:
                 self.password = msg.text[1]
         elif msg.text[0] == "+o":
-            self.people[msg.nick] |= 4
+            self.people[msg.frm] |= 4
         elif msg.text[0] == "-o":
-            self.people[msg.nick] &= ~4
+            self.people[msg.frm] &= ~4
         elif msg.text[0] == "+h":
-            self.people[msg.nick] |= 2
+            self.people[msg.frm] |= 2
         elif msg.text[0] == "-h":
-            self.people[msg.nick] &= ~2
+            self.people[msg.frm] &= ~2
         elif msg.text[0] == "+v":
-            self.people[msg.nick] |= 1
+            self.people[msg.frm] |= 1
         elif msg.text[0] == "-v":
-            self.people[msg.nick] &= ~1
+            self.people[msg.frm] &= ~1
 
     def parse332(self, msg):
         """Parse RPL_TOPIC message
diff --git a/nemubot/message/abstract.py b/nemubot/message/abstract.py
index 6ee43d5..3af0511 100644
--- a/nemubot/message/abstract.py
+++ b/nemubot/message/abstract.py
@@ -59,12 +59,6 @@ class Abstract:
         else:
             return None
 
-    @property
-    def nick(self):
-        # TODO: this is for legacy modules
-        return self.frm
-
-
     def accept(self, visitor):
         visitor.visit(self)
 
diff --git a/nemubot/server/IRC.py b/nemubot/server/IRC.py
index 7469abc..7adc484 100644
--- a/nemubot/server/IRC.py
+++ b/nemubot/server/IRC.py
@@ -174,10 +174,10 @@ class _IRC:
 
             for chname in msg.params[0].split(b","):
                 if chname in self.channels:
-                    if msg.nick == self.nick:
+                    if msg.frm == self.nick:
                         del self.channels[chname]
-                    elif msg.nick in self.channels[chname].people:
-                        del self.channels[chname].people[msg.nick]
+                    elif msg.frm in self.channels[chname].people:
+                        del self.channels[chname].people[msg.frm]
         self.hookscmd["PART"] = _on_part
         # Respond to 331/RPL_NOTOPIC,332/RPL_TOPIC,TOPIC
         def _on_topic(msg):
@@ -227,7 +227,7 @@ class _IRC:
             else:
                 res = "ERRMSG Unknown or unimplemented CTCP request"
             if res is not None:
-                self.write("NOTICE %s :\x01%s\x01" % (msg.nick, res))
+                self.write("NOTICE %s :\x01%s\x01" % (msg.frm, res))
         self.hookscmd["PRIVMSG"] = _on_ctcp