diff --git a/service/clusteragent.lua b/service/clusteragent.lua
index 3797c04f..b0b8c2b8 100644
--- a/service/clusteragent.lua
+++ b/service/clusteragent.lua
@@ -135,7 +135,7 @@ skynet.start(function()
 
 	skynet.dispatch("lua", function(_,source, cmd, ...)
 		if cmd == "exit" then
-			socket.close(fd)
+			socket.close_fd(fd)
 			skynet.exit()
 		elseif cmd == "namechange" then
 			register_name = new_register_name()