diff --git a/lib/gitlab/metrics.rb b/lib/gitlab/metrics.rb
index 49f702f91f6..f2758b5c44a 100644
--- a/lib/gitlab/metrics.rb
+++ b/lib/gitlab/metrics.rb
@@ -136,10 +136,10 @@ module Gitlab
       end
     end
 
-    private
-
     def self.current_transaction
       Transaction.current
     end
+
+    private_class_method :current_transaction
   end
 end