diff --git a/app/Http/Controllers/BranchControlController.php b/app/Http/Controllers/BranchControlController.php
index de45564..fa01d01 100644
--- a/app/Http/Controllers/BranchControlController.php
+++ b/app/Http/Controllers/BranchControlController.php
@@ -67,7 +67,9 @@ class BranchControlController extends Controller
      */
     public function Branches(Request $request): JsonResponse
     {
-        $branches = Branch::with('rooms')->orderBy('name', 'asc')->get()->map(function ($branch) {
+        $branches = Branch::with(['rooms' => function ($query) {
+            $query->orderBy('name', 'asc'); // 對 rooms 的 name 排序
+        }])->get()->map(function ($branch) {
             return [
                 'id' => $branch->id,
                 'branch_name' => $branch->name,