diff --git a/src/lib/MVC/Symfony/Routing/UrlAliasRouter.php b/src/lib/MVC/Symfony/Routing/UrlAliasRouter.php
index 3779381bed..e65c821831 100644
--- a/src/lib/MVC/Symfony/Routing/UrlAliasRouter.php
+++ b/src/lib/MVC/Symfony/Routing/UrlAliasRouter.php
@@ -109,7 +109,7 @@ public function matchRequest(Request $request)
             }
 
             $params = [
-                '_route' => self::URL_ALIAS_ROUTE_NAME,
+                '_route' => static::URL_ALIAS_ROUTE_NAME,
             ];
             switch ($urlAlias->type) {
                 case URLAlias::LOCATION:
@@ -305,7 +305,7 @@ public function generate(string $name, array $parameters = [], int $referenceTyp
         }
 
         // Normal route name
-        if ($name === self::URL_ALIAS_ROUTE_NAME) {
+        if ($name === static::URL_ALIAS_ROUTE_NAME) {
             if (isset($parameters['location']) || isset($parameters['locationId'])) {
                 // Check if location is a valid Location object
                 if (isset($parameters['location']) && !$parameters['location'] instanceof Location) {
@@ -379,7 +379,7 @@ public function match($pathinfo)
      */
     public function supports($name)
     {
-        return $name === self::URL_ALIAS_ROUTE_NAME || $this->supportsObject($name);
+        return $name === static::URL_ALIAS_ROUTE_NAME || $this->supportsObject($name);
     }
 
     private function supportsObject($object): bool
diff --git a/src/lib/MVC/Symfony/Routing/UrlWildcardRouter.php b/src/lib/MVC/Symfony/Routing/UrlWildcardRouter.php
index d1412622c4..4b83a27ca7 100644
--- a/src/lib/MVC/Symfony/Routing/UrlWildcardRouter.php
+++ b/src/lib/MVC/Symfony/Routing/UrlWildcardRouter.php
@@ -151,7 +151,7 @@ public function match($pathinfo): array
      */
     public function supports($name): bool
     {
-        return $name === self::URL_ALIAS_ROUTE_NAME;
+        return $name === static::URL_ALIAS_ROUTE_NAME;
     }
 
     /**