diff --git a/lib/dm-migrations/migration_runner.rb b/lib/dm-migrations/migration_runner.rb
index f6d3bf9..316ed95 100644
--- a/lib/dm-migrations/migration_runner.rb
+++ b/lib/dm-migrations/migration_runner.rb
@@ -76,7 +76,7 @@ def migrate_down!(level = nil)
     end
 
     def migrations
-      @migrations ||= []
+      @@migrations ||= []
     end
 
   end