diff --git a/examples/agent.lua b/examples/agent.lua
index a27645a0..61628435 100644
--- a/examples/agent.lua
+++ b/examples/agent.lua
@@ -1,5 +1,4 @@
 local skynet = require "skynet"
-local netpack = require "skynet.netpack"
 local socket = require "skynet.socket"
 local sproto = require "sproto"
 local sprotoloader = require "sprotoloader"