diff --git a/kallithea/lib/vcs/backends/git/repository.py b/kallithea/lib/vcs/backends/git/repository.py
--- a/kallithea/lib/vcs/backends/git/repository.py
+++ b/kallithea/lib/vcs/backends/git/repository.py
@@ -572,7 +572,8 @@ class GitRepository(BaseRepository):
 
         revs = revs[start_pos:end_pos]
         if reverse:
-            revs = reversed(revs)
+            revs.reverse()
+
         return CollectionGenerator(self, revs)
 
     def get_diff(self, rev1, rev2, path=None, ignore_whitespace=False,
diff --git a/kallithea/lib/vcs/backends/hg/repository.py b/kallithea/lib/vcs/backends/hg/repository.py
--- a/kallithea/lib/vcs/backends/hg/repository.py
+++ b/kallithea/lib/vcs/backends/hg/repository.py
@@ -553,7 +553,7 @@ class MercurialRepository(BaseRepository
         # would be to get rid of this function entirely and use revsets
         revs = list(revisions)[start_pos:end_pos]
         if reverse:
-            revs = reversed(revs)
+            revs.reverse()
 
         return CollectionGenerator(self, revs)