diff --git a/api.go b/api.go
index d234ddc..00f40bf 100644
--- a/api.go
+++ b/api.go
@@ -121,10 +121,7 @@ func (r *vshardStorageCallResponseProto) DecodeMsgpack(d *msgpack.Decoder) error
 	// isVShardRespOk is true
 	buf := bytes.NewBuffer(nil)
 
-	adjustmentByte := byte(respArrayLen - 1)
-
-	// write that it is array and length of adjustment
-	buf.Write([]byte{0xDD, 0, 0, 0, adjustmentByte})
+	buf.WriteByte(msgpcode.FixedArrayLow | byte(respArrayLen-1))
 
 	_, err = buf.ReadFrom(d.Buffered())
 	if err != nil {