diff --git a/zh/05.6.md b/zh/05.6.md
index f3d3ba27..5933e4cf 100644
--- a/zh/05.6.md
+++ b/zh/05.6.md
@@ -58,7 +58,7 @@ func newPool(server string) *redis.Pool {
 		TestOnBorrow: func(c redis.Conn, t time.Time) error {
 			_, err := c.Do("PING")
 			return err
-		},
+		}
 	}
 }