diff --git a/src/controllers/05-quotation-controller.ts b/src/controllers/05-quotation-controller.ts
index 3e0ec78..8dd46ea 100644
--- a/src/controllers/05-quotation-controller.ts
+++ b/src/controllers/05-quotation-controller.ts
@@ -252,7 +252,10 @@ export class QuotationController extends Controller {
       product: body.productServiceList
         .map((v) => v.productId)
         .filter((v, i, a) => a.findIndex((c) => c === v) === i),
-      work: body.productServiceList.map((v) => v.workId || []).flat(),
+      work: body.productServiceList
+        .map((v) => v.workId || [])
+        .filter((v, i, a) => a.findIndex((c) => c === v) === i)
+        .flat(),
       service: body.productServiceList.map((v) => v.serviceId || []).flat(),
     };