diff --git a/pkg/ip/utils_linux.go b/pkg/ip/utils_linux.go
index 0cba4891..943117e1 100644
--- a/pkg/ip/utils_linux.go
+++ b/pkg/ip/utils_linux.go
@@ -1,3 +1,4 @@
+//go:build linux
 // +build linux
 
 // Copyright 2016 CNI authors