diff --git a/tarteaucitron.js b/tarteaucitron.js
index 88cd673..0cada71 100644
--- a/tarteaucitron.js
+++ b/tarteaucitron.js
@@ -865,14 +865,15 @@ var tarteaucitron = {
                 expireTime = time + 31536000000, // 365 days
                 regex = new RegExp("!" + key + "=(wait|true|false)", "g"),
                 cookie = tarteaucitron.cookie.read().replace(regex, ""),
-                value = 'tarteaucitron=' + cookie + '!' + key + '=' + status;
-            
-            if (tarteaucitron.cookie.read().indexOf(key + '=' + status) === -1) {
+                value = 'tarteaucitron=' + cookie + '!' + key + '=' + status,
+                domain = (tarteaucitron.parameters.cookieDomain !== undefined && tarteaucitron.parameters.cookieDomain !== '') ? 'domain=' + tarteaucitron.parameters.cookieDomain + ';' : '';
+
+          if (tarteaucitron.cookie.read().indexOf(key + '=' + status) === -1) {
                 tarteaucitron.pro('!' + key + '=' + status);
             }
 
             d.setTime(expireTime);
-            document.cookie = value + '; expires=' + d.toGMTString() + '; path=/;';
+            document.cookie = value + '; expires=' + d.toGMTString() + '; path=/;' + domain;
         },
         "read": function () {
             "use strict";