diff --git a/twitter/api.py b/twitter/api.py
index ecba5d92..89055932 100755
--- a/twitter/api.py
+++ b/twitter/api.py
@@ -5090,7 +5090,7 @@ def _ParseAndCheckTwitter(self, json_data):
                 raise TwitterError({'message': "Exceeded connection limit for user"})
             if "Error 401 Unauthorized" in json_data:
                 raise TwitterError({'message': "Unauthorized"})
-            raise TwitterError({'message': 'Unknown error': '{0}'.format(json_data)})
+            raise TwitterError({'message': 'Unknown error: {0}'.format(json_data)})
         self._CheckForTwitterError(data)
         return data