diff --git a/builder/hyperv/iso/builder_test.go b/builder/hyperv/iso/builder_test.go
index 44d73e8c8..0369c0df7 100644
--- a/builder/hyperv/iso/builder_test.go
+++ b/builder/hyperv/iso/builder_test.go
@@ -1,3 +1,5 @@
+// +build !windows
+
 package iso
 
 import (