1 files changed, 1 insertions, 1 deletions
diff --git a/lib/gitlab/background_migration/backfill_user_namespace.rb b/lib/gitlab/background_migration/backfill_user_namespace.rb
index f55eaa3b14e..ab569e236fb 100644
--- a/lib/gitlab/background_migration/backfill_user_namespace.rb
+++ b/lib/gitlab/background_migration/backfill_user_namespace.rb
@@ -29,7 +29,7 @@ module Gitlab
       end
 
       def relation_scoped_to_range(source_table, source_key_column, start_id, stop_id)
-        define_batchable_model(source_table)
+        define_batchable_model(source_table, connection: connection)
           .where(source_key_column => start_id..stop_id)
           .where(type: nil)
       end