diff --git a/lib/httpclient.js b/lib/httpclient.js
index 2aa293a..c33e458 100644
--- a/lib/httpclient.js
+++ b/lib/httpclient.js
@@ -209,7 +209,7 @@ module.exports = function Browser (parameters) {
 		}
 
 		if (cookies) {
-			requestObj.headers.Cookies = cookies; 
+			requestObj.headers.Cookie = cookies; 
 		}
 		
 		if (isHttps) {