diff --git a/builder/hyperv/vmcx/builder_test.go b/builder/hyperv/vmcx/builder_test.go
index 3626a6434..3994c42b0 100644
--- a/builder/hyperv/vmcx/builder_test.go
+++ b/builder/hyperv/vmcx/builder_test.go
@@ -1,3 +1,5 @@
+// +build !windows
+
 package vmcx
 
 import (