diff --git a/test/typeparam/issue50417.go b/test/typeparam/issue50417.go
index bf6ac424c5..f6cf73b18f 100644
--- a/test/typeparam/issue50417.go
+++ b/test/typeparam/issue50417.go
@@ -1,4 +1,4 @@
-// run
+// run -gcflags=-G=3
 
 // Copyright 2022 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style