diff --git a/iface/mod.go b/iface/mod.go
index 0b59f3d9a..f020c3e13 100644
--- a/iface/mod.go
+++ b/iface/mod.go
@@ -1,3 +1,5 @@
+// +build linux
+
 package iface
 
 // Holds logic to check existence of Wireguard kernel module