diff --git a/src/Notifynder/NotifynderServiceProvider.php b/src/Notifynder/NotifynderServiceProvider.php
index 61db464..e966239 100755
--- a/src/Notifynder/NotifynderServiceProvider.php
+++ b/src/Notifynder/NotifynderServiceProvider.php
@@ -126,7 +126,7 @@ protected function notifications()
 
         // Inject configs when model is resolved
         $this->app->resolving(Notification::class, function (Notification $object, $app) {
-            $fillable = $app['config']->get('notifynder.additional_fields.fillable');
+            $fillable = $app['config']->get('notifynder.additional_fields.fillable', []);
             $object->fillable(array_merge($object->getFillable(),$fillable));
         });