diff --git a/app/models/repository.rb b/app/models/repository.rb
index 4b8dee4..33b7c55 100644
--- a/app/models/repository.rb
+++ b/app/models/repository.rb
@@ -65,7 +65,7 @@ class Repository
   end
 
   def graph_log
-    Rails.cache.fetch(cache_key(:graph)) do
+    Rails.cache.fetch(cache_key(:graph_log)) do
       stats = Gitlab::Git::GitStats.new(raw, root_ref)
       stats.parsed_log
     end
--
libgit2 0.21.2