diff --git a/example/ivy/tools.go b/example/ivy/tools.go
index ab067c2..85a6069 100644
--- a/example/ivy/tools.go
+++ b/example/ivy/tools.go
@@ -3,6 +3,7 @@
 // license that can be found in the LICENSE file.
 
 //go:build ignore
+// +build ignore
 
 package dummy