diff --git a/pkg/storage/driver/memory.go b/pkg/storage/driver/memory.go
index 9dafcf5b1..e3b5bb222 100644
--- a/pkg/storage/driver/memory.go
+++ b/pkg/storage/driver/memory.go
@@ -151,7 +151,6 @@ func (mem *Memory) Delete(key string) (*rspb.Release, error) {
 	default:
 		return nil, ErrInvalidKey
 	}
-	return nil, ErrReleaseNotFound
 }
 
 func (mem *Memory) dump(w io.Writer) error {