diff --git a/index.js b/index.js
index 5534c3b..e6f6dc9 100644
--- a/index.js
+++ b/index.js
@@ -491,7 +491,7 @@ Mod.prototype.callback = function (req, res, serverconsole, responseEnd, href, e
         env: env
       };
 
-      handler = createFastCGIHandler(options);
+      var handler = createFastCGIHandler(options);
       handler.on("error", function (error) {
         var errorcode = 0;
         if (error.code == "ENOTFOUND" || error.code == "EHOSTUNREACH" || error.code == "ECONNREFUSED") {