diff --git a/test/nilptr2.go b/test/nilptr2.go
index a5c036999a..8a85b6dbcb 100644
--- a/test/nilptr2.go
+++ b/test/nilptr2.go
@@ -35,7 +35,10 @@ var m *M
 var m1 *M1
 var m2 *M2
 
-func use(interface{}) {
+var V interface{}
+
+func use(x interface{}) {
+	V = x
 }
 
 var tests = []struct{