diff --git a/test/fixedbugs/issue36516.go b/test/fixedbugs/issue36516.go
index 1472d4c222..d4e28b636d 100644
--- a/test/fixedbugs/issue36516.go
+++ b/test/fixedbugs/issue36516.go
@@ -1,4 +1,4 @@
-// +build linux,amd64
+// +build cgo,linux,amd64
 // run -race
 
 // Copyright 2020 The Go Authors. All rights reserved.