diff --git a/app/Services/StickerPdfService.php b/app/Services/StickerPdfService.php
index 50c470d..efdb987 100644
--- a/app/Services/StickerPdfService.php
+++ b/app/Services/StickerPdfService.php
@@ -10,6 +10,7 @@ use App\Models\StickerMappingMaster;
 use App\Models\StickerStructureDetail;
 use App\Models\StickerValidation;
 use App\Models\TestApprovalMapping;
+use App\Models\ClassCharacteristic;
 use Illuminate\Http\Response;
 use Illuminate\Support\Collection;
 use Illuminate\Support\Facades\Log;
@@ -1043,7 +1044,7 @@ class StickerPdfService
         }
     }
 
-    public function generateTemplate(string $stickerId,Collection $dynamicElements,?ItemCharacteristic $itemCharacteristic,$itemCode,$plantId, $machineId)
+    public function generateTemplate(string $stickerId,Collection $dynamicElements,?ClassCharacteristic $itemCharacteristic,$itemCode,$plantId, $machineId)
     {
         $dynamicValueMap = [];