diff --git a/idlebot.py b/idlebot.py
index 2688e5a..cd46cf3 100644
--- a/idlebot.py
+++ b/idlebot.py
@@ -112,7 +112,7 @@ class IdleBot(slixmpp.ClientXMPP):
             self.join_room(room)
         else:
             if nick in self.room_roster[room]:
-                sel.room_roster[room].remove(nick)
+                self.room_roster[room].remove(nick)
         logging.debug('Roster: {}'.format(self.room_roster))
                 
     def reconnect(self, event):