diff --git a/app/Services/ParkingElectronicMapService.php b/app/Services/ParkingElectronicMapService.php
index 9269389..ceb0bcc 100644
--- a/app/Services/ParkingElectronicMapService.php
+++ b/app/Services/ParkingElectronicMapService.php
@@ -127,8 +127,8 @@ class ParkingElectronicMapService extends BaseService
         $old_floor_id = ParkingElectronicMap::query()->where([
             'space_id' => $space_id
         ])->value('floor_id');
-        if ($old_floor_id != $floor_id) {
-            self::syncDeleteMapSpace($space_id, $floor_id);
+        if ($old_floor_id && $old_floor_id != $floor_id) {
+            self::syncDeleteMapSpace($space_id, $old_floor_id);
         }
     }
 }