diff --git a/include/irc.h b/include/irc.h
--- a/include/irc.h
+++ b/include/irc.h
@@ -24,6 +24,6 @@
 typedef struct Message MSG;
 
 FILE *irc_connect (char *, unsigned int);
-int irc_login (FILE *, char *, char *);
+int irc_login (FILE *, char *, char *, char *);
 char *irc_parsemessage (const char *, MSG *);
 #endif