diff --git a/app/Models/ParkingSpace.php b/app/Models/ParkingSpace.php
index d8b6699..157a5e7 100644
--- a/app/Models/ParkingSpace.php
+++ b/app/Models/ParkingSpace.php
@@ -65,7 +65,7 @@ class ParkingSpace extends Model
 
     public static function getValueId($number)
     {
-        return self::query()->where('number', $number)->value('id');
+        return self::query()->where('number', $number)->value('id') ?? '';
     }
 
     public static function getCount()