diff --git a/src/cmd/go/internal/par/work_test.go b/src/cmd/go/internal/par/work_test.go
index 53a715ea81..f104bc4106 100644
--- a/src/cmd/go/internal/par/work_test.go
+++ b/src/cmd/go/internal/par/work_test.go
@@ -32,9 +32,8 @@ func TestWork(t *testing.T) {
 }
 
 func TestWorkParallel(t *testing.T) {
-	var w Work
-
 	for tries := 0; tries < 10; tries++ {
+		var w Work
 		const N = 100
 		for i := 0; i < N; i++ {
 			w.Add(i)