diff --git a/src/gajim.py b/src/gajim.py
index 6f69eb8d2..9f0f604c3 100755
--- a/src/gajim.py
+++ b/src/gajim.py
@@ -587,7 +587,7 @@ class Interface:
 				array['resource']):
 			win = self.windows[account]['chats'][array['jid'] + '/' + \
 				array['resource']]
-		if win
+		if win:
 			win.set_avatar(array)
 
 	def handle_event_os_info(self, account, array):