diff --git a/component/pool/pool_test.go b/component/pool/pool_test.go
index 844ef245..6fc8622d 100644
--- a/component/pool/pool_test.go
+++ b/component/pool/pool_test.go
@@ -84,6 +84,7 @@ func TestPool_AutoGC(t *testing.T) {
 	elm, _ := pool.Get()
 	assert.Equal(t, 0, elm.(int))
 	pool.Put(2)
+	pool = nil
 
 	runtime.GC()