diff --git a/hggit/git_handler.py b/hggit/git_handler.py
index e5450a81676ee408b2854ff03f2ec9fd7c68b6b0_aGdnaXQvZ2l0X2hhbmRsZXIucHk=..c37842fffb16e37907912909a4a6630f3023a92b_aGdnaXQvZ2l0X2hhbmRsZXIucHk= 100644
--- a/hggit/git_handler.py
+++ b/hggit/git_handler.py
@@ -660,7 +660,7 @@
 
         return message, git_extra
 
-    def getnewgitcommits(self, refs=None):
+    def getnewgitcommits(self, refs):
         # import heads and fetched tags as remote references
         todo = []
         done = set()