diff --git a/app/Http/Controllers/DeviceController.php b/app/Http/Controllers/DeviceController.php
index f2403c6..3823af0 100644
--- a/app/Http/Controllers/DeviceController.php
+++ b/app/Http/Controllers/DeviceController.php
@@ -729,7 +729,7 @@ class DeviceController extends Controller
                 // 日期
                 $date = $startTime->toDateString();
 
-                $data[$date] = $wormReports->get($date);
+                $data[$date] = $wormReports->get($date, 0);
 
                 $startTime->addDay();
             } while ($startTime->lte($endTime));