diff --git a/app/Controller/admin/api/KeywordsController.php b/app/Controller/admin/api/KeywordsController.php
index 181ace1..8ec6478 100644
--- a/app/Controller/admin/api/KeywordsController.php
+++ b/app/Controller/admin/api/KeywordsController.php
@@ -58,7 +58,7 @@ class KeywordsController extends AbstractController
     public function monitorInsert(): \Psr\Http\Message\ResponseInterface
     {
         $keyword = $this->request->post('keyword');
-        $ignoreUrl = $this->request->post('ignore_url', []);
+        $ignoreUrl = $this->request->post('ignore_url');
 
         $query = AppKeywordsMonitor::query()->where([
             ['keyword', $keyword],
@@ -72,7 +72,7 @@ class KeywordsController extends AbstractController
 
         $query->keyword = $keyword;
 
-        $ignoreUrl = array_filter(array_unique(explode(PHP_EOL, $ignoreUrl)));
+        $ignoreUrl = array_filter(array_unique(explode(PHP_EOL, $ignoreUrl ?: [])));
         $query->ignore_url = json_encode($ignoreUrl);
         $query->save();