diff --git a/login.py b/login.py
index 81348bf..3e9afc7 100644
--- a/login.py
+++ b/login.py
@@ -9,16 +9,17 @@ LOGIN_FIELD = 2
 EMAILADDR_FIELD = 3
 
 
-def check(cnt, file):
+def check(cnt, *files):
     data, uname = cnt
     username, address = parseaddr(uname)
 
-    with open(file, encoding='utf-8') as fd:
-        people = csv.reader(fd)
-        for p in people:
-            if address.lower() == p[EMAILADDR_FIELD].lower() or uname.lower().find(p[LOGIN_FIELD].lower()) >= 0 or username.lower().replace(" ", "").find(p[LASTNAME_FIELD].lower().replace(" ", "")) >= 0 and username.lower().find(p[FIRSTNAME_FIELD].lower()) >= 0:
-                yield MailTest("Recognized as %s: %s %s." % (p[LOGIN_FIELD], p[FIRSTNAME_FIELD], p[LASTNAME_FIELD]))
-                yield data, p[LOGIN_FIELD]
-                return
+    for file in files:
+        with open(file, encoding='utf-8') as fd:
+            people = csv.reader(fd)
+            for p in people:
+                if address.lower() == p[EMAILADDR_FIELD].lower() or uname.lower().find(p[LOGIN_FIELD].lower()) >= 0 or username.lower().replace(" ", "").find(p[LASTNAME_FIELD].lower().replace(" ", "")) >= 0 and username.lower().find(p[FIRSTNAME_FIELD].lower()) >= 0:
+                    yield MailTest("Recognized as %s: %s %s." % (p[LOGIN_FIELD], p[FIRSTNAME_FIELD], p[LASTNAME_FIELD]))
+                    yield data, p[LOGIN_FIELD]
+                    return
 
     yield MailTest("The username of your key is not explicit, I can't find you.", 1)