diff --git a/nginx/recaptcha.lua b/nginx/recaptcha.lua
index b7f8be2..f1b31b2 100644
--- a/nginx/recaptcha.lua
+++ b/nginx/recaptcha.lua
@@ -1,5 +1,4 @@
-local recaptcha = {}
-
+local template = require "resty.template.safe"
 
 local M = {_TYPE='module', _NAME='recaptcha.funcs', _VERSION='1.0-0'}