diff --git a/src/gajim.py b/src/gajim.py
index d0529cb24..5c44048de 100755
--- a/src/gajim.py
+++ b/src/gajim.py
@@ -383,7 +383,7 @@ class Interface:
 		gajim.config.add_per('accounts', name)
 		for opt in array[1]:
 			gajim.config.set_per('accounts', name, opt, array[1][opt])
-		if self.windows['account_modification']:
+		if self.windows.has_key('account_modification'):
 			self.windows['account_modification'].account_is_ok(array[0])
 		self.windows[name] = {'infos': {}, 'chats': {}, 'gc': {}, 'gc_config': {}}
 		self.queues[name] = {}