diff --git a/app/Services/DutyMedicalHistoryService.php b/app/Services/DutyMedicalHistoryService.php
index 74263f2..9160504 100644
--- a/app/Services/DutyMedicalHistoryService.php
+++ b/app/Services/DutyMedicalHistoryService.php
@@ -39,7 +39,7 @@ class DutyMedicalHistoryService
 
         // 1. Один запрос: получаем "сырые" данные (без вычисляемых статусов)
         $all = ReportDutyPatient::query()
-            ->when($reportIds, function ($query, $reportIds) {
+            ->when($reportIds !== null, function ($query) use ($reportIds) {
                 return $query->whereIn('report_duty_id', $reportIds);
             })
             ->whereHas('migrations', $periodMigrationFilter)