diff --git a/app/Controller/admin/api/KeywordsController.php b/app/Controller/admin/api/KeywordsController.php
index 564d8dd..0aa59fb 100644
--- a/app/Controller/admin/api/KeywordsController.php
+++ b/app/Controller/admin/api/KeywordsController.php
@@ -231,7 +231,7 @@ class KeywordsController extends AbstractController
         $exportList["百度PC端_$percent%"] = $baiduPCRes;
 
         // 百度WAP非负率
-        $total = AppKeywordsMonitorTask::query()->where('is_delete', 0)->where('platform', 2)->sum('length');
+        $total = AppKeywordsMonitorTask::query()->where('is_delete', 0)->where('platform', 2)->sum('length') ?: 1;
         $percent = round(($total - count($baiduWAPRes)) / $total, 2) * 100;
         $exportList["百度WAP端_$percent%"] = $baiduWAPRes;