diff --git a/lib/express/plugins/cookie.js b/lib/express/plugins/cookie.js
index 5cf0988975..0be6788f1c 100644
--- a/lib/express/plugins/cookie.js
+++ b/lib/express/plugins/cookie.js
@@ -19,7 +19,7 @@ var Request = require('express/request').Request,
 exports.parseCookie = function(cookie) {
   return cookie.split(/[;,] */).reduce(function(cookies, pair) {
     var eql = pair.indexOf('=')
-    if (eql == -1) return cookies
+    if (eql === -1) return cookies
     var key = queryString.unescape(pair.slice(0, eql).trim(), true)
     var val = queryString.unescape(pair.slice(eql + 1).trim(), true)
     var captures = val.match(/^("|')([^\1]*)\1$/)