diff --git a/hggit/git_handler.py b/hggit/git_handler.py
index 9d735570322d4ad67a70515572447993497fa320_aGdnaXQvZ2l0X2hhbmRsZXIucHk=..c2301b52c3af5900c63065e77f3bd1ddbea3d3ec_aGdnaXQvZ2l0X2hhbmRsZXIucHk= 100644
--- a/hggit/git_handler.py
+++ b/hggit/git_handler.py
@@ -845,7 +845,7 @@
         else:
             renames = hg_renames
 
-        gparents = map(self.map_hg_get, commit.parents)
+        gparents = pycompat.maplist(self.map_hg_get, commit.parents)
 
         for parent in gparents:
             if parent not in self.repo: