diff --git a/pkg/strategy/xdepthmaker/strategy_test.go b/pkg/strategy/xdepthmaker/strategy_test.go
index 5f40af7f6..182f0bc8a 100644
--- a/pkg/strategy/xdepthmaker/strategy_test.go
+++ b/pkg/strategy/xdepthmaker/strategy_test.go
@@ -1,3 +1,5 @@
+//go:build !dnum
+
 package xdepthmaker
 
 import (