diff --git a/nemubot/__init__.py b/nemubot/__init__.py
index 90a4d01..4c1401c 100644
--- a/nemubot/__init__.py
+++ b/nemubot/__init__.py
@@ -40,8 +40,8 @@ def requires_version(min=None, max=None):
                           "but this is nemubot v%s." % (str(max), __version__))
 
 
-def attach(pid):
-    print("TODO, attach to %d" % pid)
+def attach(socketfile):
+    print("TODO: Attach to Unix socket at: %s" % socketfile)
     return 0
 
 
diff --git a/nemubot/__main__.py b/nemubot/__main__.py
index 59e609c..1c9b310 100644
--- a/nemubot/__main__.py
+++ b/nemubot/__main__.py
@@ -45,6 +45,9 @@ def main():
     parser.add_argument("-P", "--pidfile", default="./nemubot.pid",
                         help="Path to the file where store PID")
 
+    parser.add_argument("-S", "--socketfile", default="./nemubot.sock",
+                        help="path where open the socket for internal communication")
+
     parser.add_argument("-l", "--logfile", default="./nemubot.log",
                         help="Path to store logs")
 
@@ -68,6 +71,7 @@ def main():
     # Resolve relatives paths
     args.data_path = os.path.abspath(os.path.expanduser(args.data_path))
     args.pidfile = os.path.abspath(os.path.expanduser(args.pidfile))
+    args.socketfile = os.path.abspath(os.path.expanduser(args.socketfile))
     args.logfile = os.path.abspath(os.path.expanduser(args.logfile))
     args.files = [ x for x in map(os.path.abspath, args.files)]
     args.modules_path = [ x for x in map(os.path.abspath, args.modules_path)]
@@ -187,6 +191,11 @@ def main():
     # Here we go!
     context.start()
 
+    if args.socketfile:
+        from nemubot.server.socket import SocketListener
+        context.add_server(SocketListener(context.add_server, "master_socket",
+                                          sock_location=args.socketfile))
+
     # context can change when performing an hotswap, always join the latest context
     oldcontext = None
     while oldcontext != context: