diff --git a/application/libraries/service/AccessControl/APIAuth.php b/application/libraries/service/AccessControl/APIAuth.php
index 1acf176..3f545ac 100755
--- a/application/libraries/service/AccessControl/APIAuth.php
+++ b/application/libraries/service/AccessControl/APIAuth.php
@@ -15,7 +15,7 @@ class APIAuth
     static function auth(array $authTypes)
     {
         if (in_array(self::AUTH_TYPE_GATEWAY, $authTypes)) {
-            if ((string) Request::parse()->token === YAML_GATEWAY_TOKEN) {
+            if ((string) Request::parse()->token === (string) YAML_GATEWAY_TOKEN) {
                 Request::setAuthData([]);
                 return TRUE;
             }