diff --git a/test/pingserver.lua b/test/pingserver.lua
index 1f0deb05..49496608 100644
--- a/test/pingserver.lua
+++ b/test/pingserver.lua
@@ -3,12 +3,12 @@ local skynet = require "skynet"
 local command = {}
 
 function command.PING(hello)
-	skynet.ret(skynet.pack(hello))
+	return hello
 end
 
 function command.HELLO()
 	skynet.sleep(100)
-	skynet.ret(skynet.pack("hello"))
+	return "hello"
 end
 
 function command.EXIT()
@@ -19,8 +19,9 @@ function command.ERROR()
 	error "throw an error"
 end
 
+
 skynet.start(function()
 	skynet.dispatch("lua", function(session,addr, cmd, ...)
-		command[cmd](...)
+		skynet.ret(skynet.pack(command[cmd](...)))
 	end)
 end)
diff --git a/test/testping.lua b/test/testping.lua
index fa59e368..59a2ad5d 100644
--- a/test/testping.lua
+++ b/test/testping.lua
@@ -3,8 +3,8 @@ local skynet = require "skynet"
 skynet.start(function()
 	local ps = skynet.uniqueservice("pingserver")
 	skynet.watch(ps)
---	print(pcall(skynet.call,ps,"lua","ERROR"))
+	print(pcall(skynet.call,ps,"lua","ERROR"))
 	print(skynet.call(ps, "lua", "PING", "hello"))
 	print(skynet.call(ps, "lua", "PING", "hay"))
-	skynet.send(ps, "lua", "EXIT")
+	skynet.call(ps, "lua", "EXIT")
 end)