diff --git a/client/client.go b/client/client.go
index ddfedae8..25d2403c 100644
--- a/client/client.go
+++ b/client/client.go
@@ -209,13 +209,13 @@ func NewClientMd5(uin int64, passwordMd5 [16]byte) *QQClient {
 	wg.Add(len(cli.servers))
 	for i := range cli.servers {
 		go func(index int, w sync.WaitGroup) {
+			defer wg.Done()
 			p, err := qualityTest(cli.servers[index])
 			if err != nil {
 				pings[index] = 9999
 				return
 			}
 			pings[index] = p
-			wg.Done()
 		}(i, wg)
 	}
 	wg.Wait()