diff --git a/cmd/kclx/main.go b/cmd/kclx/main.go
index f6b4fe3..8a884ff 100644
--- a/cmd/kclx/main.go
+++ b/cmd/kclx/main.go
@@ -1,4 +1,6 @@
 // Copyright The KCL Authors. All rights reserved.
+//go:build cgo
+// +build cgo
 
 package main