diff --git a/old/insert.go b/old/insert.go
index 41f9bd0..29b7b4f 100644
--- a/old/insert.go
+++ b/old/insert.go
@@ -7,4 +7,5 @@ func (s *Store) Insert(value interface{}) error {
 	// }
 
 	// return nil
+	return nil
 }