diff --git a/pkg/util/bandwidth/linux_test.go b/pkg/util/bandwidth/linux_test.go
index a1ac3e216b3..f725570ff86 100644
--- a/pkg/util/bandwidth/linux_test.go
+++ b/pkg/util/bandwidth/linux_test.go
@@ -1,3 +1,5 @@
+// +build linux
+
 /*
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