diff --git a/src/controllers/product/type-controller.ts b/src/controllers/product/type-controller.ts
index a764c76..b207deb 100644
--- a/src/controllers/product/type-controller.ts
+++ b/src/controllers/product/type-controller.ts
@@ -130,7 +130,7 @@ export class ProductType extends Controller {
   ) {
     if (
       body.productGroupId &&
-      !(await prisma.productType.findFirst({ where: { id: body.productGroupId } }))
+      !(await prisma.productGroup.findFirst({ where: { id: body.productGroupId } }))
     ) {
       throw new HttpError(
         HttpStatus.BAD_REQUEST,