diff --git a/src/LocalizedUrlGenerator.php b/src/LocalizedUrlGenerator.php
index 7e02718..4282bc2 100644
--- a/src/LocalizedUrlGenerator.php
+++ b/src/LocalizedUrlGenerator.php
@@ -162,7 +162,7 @@ protected function is404(): bool
      */
     protected function isFallback(): bool
     {
-        return $this->route->isFallback;
+        return $this->routeExists() && $this->route->isFallback;
     }
 
     /**