diff --git a/src/websocket/client_sync.lua b/src/websocket/client_sync.lua
index eaac5d7..14090de 100644
--- a/src/websocket/client_sync.lua
+++ b/src/websocket/client_sync.lua
@@ -1,6 +1,5 @@
 local socket = require'socket'
 local sync = require'websocket.sync'
-local tools = require'websocket.tools'
 
 local new = function(ws)
   ws =  ws or {}