diff --git a/barker/barker/routers/modifier_category.py b/barker/barker/routers/modifier_category.py
index 7e45a843..dca07454 100644
--- a/barker/barker/routers/modifier_category.py
+++ b/barker/barker/routers/modifier_category.py
@@ -190,14 +190,16 @@ def show_list(
         return modifier_categories
 
 
-@router.get("/for-product/{id_}")
+@router.get("/for-product/{sku_id}")
 def for_product(
-    id_: uuid.UUID,
+    sku_id: uuid.UUID,
     date_: date = Depends(effective_date),
     user: UserToken = Security(get_user),
 ) -> list[ModifierCategoryForProduct]:
     with SessionFuture() as db:
-        product: Product = db.execute(select(Product).where(Product.id == id_)).scalar_one()
+        product: Product = db.execute(
+            select(Product).join(Product.skus).where(StockKeepingUnit.id == sku_id)
+        ).scalar_one()
 
         return [
             ModifierCategoryForProduct(