diff --git a/core/admin.py b/core/admin.py
index 664c9011..46a6ee3c 100644
--- a/core/admin.py
+++ b/core/admin.py
@@ -245,7 +245,7 @@ class ProductAdmin(FieldsetsMixin, BasicModelAdmin):
         ("brand", DALFRelatedFieldAjax),
         ("category", DALFRelatedFieldAjax),
         ("tags", DALFRelatedFieldAjax),
-        ("stocks__vendor", DALFRelatedFieldAjax),
+        ("stocks__vendor", DALFRelatedOnlyField),
         "created",
         "modified",
     )
diff --git a/core/api_urls.py b/core/api_urls.py
index 101b2be6..cb323dd8 100644
--- a/core/api_urls.py
+++ b/core/api_urls.py
@@ -59,14 +59,21 @@ urlpatterns = [
     path(
         "sitemap.xml",
         sitemap_index,
-        {
-            "sitemaps": sitemaps,
-            "sitemap_url_name": "sitemap-index"
-            },
-        name="sitemap-index"
+        {"sitemaps": sitemaps, "sitemap_url_name": "sitemap-detail"},
+        name="sitemap-index",
+    ),
+    path(
+        "sitemap-<section>.xml",
+        sitemap_detail,
+        {"sitemaps": sitemaps},
+        name="sitemap-detail",
+    ),
+    path(
+        "sitemap-<section>-<int:page>.xml",
+        sitemap_detail,
+        {"sitemaps": sitemaps},
+        name="sitemap-detail",
     ),
-    path("sitemap-<section>.xml", sitemap_detail, {"sitemaps": sitemaps}, name="sitemap-detail"),
-    path("sitemap-<section>-<int:page>.xml", sitemap_detail, {"sitemaps": sitemaps}, name="sitemap-detail"),
     path("download/<str:order_product_uuid>/", download_digital_asset_view, name="download_digital_asset"),
     path("search/", GlobalSearchView.as_view(), name="global_search"),
     path("app/cache/", CacheOperatorView.as_view(), name="cache_operator"),