diff --git a/app/Models/ParkingSpaceAttributes.php b/app/Models/ParkingSpaceAttributes.php
index ebfb811..2fa8904 100644
--- a/app/Models/ParkingSpaceAttributes.php
+++ b/app/Models/ParkingSpaceAttributes.php
@@ -51,9 +51,9 @@ class ParkingSpaceAttributes extends Model
                 $item['attributes']
             );
             if ($is_default == 1) {
-                unset($item['import_diagram']);
+                unset($data[$key]['import_diagram']);
             } else {
-                $item['import_diagram_url'] = get_image_url($item['import_diagram']);
+                $data[$key]['import_diagram_url'] = get_image_url($item['import_diagram']);
             }
         }
         return $data;