diff --git a/internal/guest/transport/vsock.go b/internal/guest/transport/vsock.go
index c731b984aa..af5d46914a 100644
--- a/internal/guest/transport/vsock.go
+++ b/internal/guest/transport/vsock.go
@@ -1,3 +1,6 @@
+//go:build linux
+// +build linux
+
 package transport
 
 import (