diff --git a/app/Models/AssignMaterial.php b/app/Models/AssignMaterial.php
index 5cb8bc5..0c282a6 100644
--- a/app/Models/AssignMaterial.php
+++ b/app/Models/AssignMaterial.php
@@ -5,6 +5,7 @@ namespace App\Models;
 use Illuminate\Database\Eloquent\Model;
 use App\Models\RequestMaterial;
 use App\Models\Activity;
+use App\Models\ReportActivityMaterial;
 
 class AssignMaterial extends Model
 {
@@ -35,6 +36,7 @@ class AssignMaterial extends Model
 		});
 
 		static::deleted(function($data) {
+			$reportActivities = ReportActivityMaterial::where('assign_material_id', $data->id)->delete();
 			$activity = Activity::where('id', $data->activity_id)->first();
 			$activity->rencana_biaya -= floatval($data->budget) * floatval($data->qty_planning);
 			$activity->save();