diff --git a/codec/noop.go b/codec/noop.go
index 9ae7a6bf..c9a66e9b 100644
--- a/codec/noop.go
+++ b/codec/noop.go
@@ -107,7 +107,6 @@ func (c *noopCodec) Unmarshal(d []byte, v interface{}, opts ...Option) error {
 		*ve = string(d)
 		return nil
 	case []byte:
-		ve = make([]byte, len(d))
 		copy(ve, d)
 		return nil
 	case *[]byte: