diff --git a/app/Admin/Services/KeywordService.php b/app/Admin/Services/KeywordService.php
index d13a1d3..952cf15 100644
--- a/app/Admin/Services/KeywordService.php
+++ b/app/Admin/Services/KeywordService.php
@@ -56,7 +56,7 @@ class KeywordService extends BaseService
             'name' => ['required'],
         ];
         $updateRules = [
-            'key' => [Rule::unique('keywords', 'key')->ignore($model->id)]
+            'key' => [Rule::unique('keywords', 'key')->ignore($model?->id)]
         ];
         $validator = Validator::make($data, $model ? $updateRules : $createRules, [
             'key.unique' => ':input 已经存在'