diff --git a/DependencyInjection/NotifyToastrExtension.php b/DependencyInjection/NotifyToastrExtension.php
index 67d843db..028ae226 100644
--- a/DependencyInjection/NotifyToastrExtension.php
+++ b/DependencyInjection/NotifyToastrExtension.php
@@ -30,7 +30,7 @@ final class NotifyToastrExtension extends Extension implements PrependExtensionI
     public function prepend(ContainerBuilder $container)
     {
         if (!$container->hasExtension('notify')) {
-            throw new \RuntimeException('[Flasher\Symfony\NotifyBundle] is not registered');
+            throw new \RuntimeException('[Flasher\SymfonyFlasher\PrimeBundle] is not registered');
         }
 
         $configs = $container->getExtensionConfig($this->getAlias());