diff --git a/src/sync/waitgroup_test.go b/src/sync/waitgroup_test.go
index a581660940..8ec34fd343 100644
--- a/src/sync/waitgroup_test.go
+++ b/src/sync/waitgroup_test.go
@@ -128,13 +128,16 @@ func TestWaitGroupMisuse3(t *testing.T) {
 		}
 	}()
 	defer runtime.GOMAXPROCS(runtime.GOMAXPROCS(4))
-	done := make(chan interface{}, 1)
+	done := make(chan interface{}, 2)
 	// The detection is opportunistically, so we want it to panic
 	// at least in one run out of a million.
 	for i := 0; i < 1e6; i++ {
 		var wg WaitGroup
 		wg.Add(1)
 		go func() {
+			defer func() {
+				done <- recover()
+			}()
 			wg.Done()
 		}()
 		go func() {
@@ -150,8 +153,10 @@ func TestWaitGroupMisuse3(t *testing.T) {
 			wg.Wait()
 		}()
 		wg.Wait()
-		if err := <-done; err != nil {
-			panic(err)
+		for j := 0; j < 2; j++ {
+			if err := <-done; err != nil {
+				panic(err)
+			}
 		}
 	}
 	t.Fatal("Should panic")