diff --git a/test/testmysql.lua b/test/testmysql.lua
index e0c95e20..edd457bb 100644
--- a/test/testmysql.lua
+++ b/test/testmysql.lua
@@ -128,7 +128,7 @@ skynet.start(function()
 		database="skynet",
 		user="root",
 		password="123456",
-        charset="utf8mb4",
+                charset="utf8mb4",
 		max_packet_size = 1024 * 1024,
 		on_connect = on_connect
 	})