diff --git a/backend/services/newbook_rates_client.py b/backend/services/newbook_rates_client.py
index 41f3447..80685e1 100644
--- a/backend/services/newbook_rates_client.py
+++ b/backend/services/newbook_rates_client.py
@@ -97,8 +97,9 @@ class NewbookRatesClient:
         """
         Fetch room categories by grouping the sites_list endpoint.
 
-        Each site includes site_category_id and site_category_name; categories
+        Each site carries its category as category_id/category_name; categories
         are derived by grouping sites and counting rooms per category.
+        Inactive categories (category_active = "0") are skipped.
 
         Returns:
             List of dicts with {category_id, category_name, room_count}
@@ -114,12 +115,14 @@ class NewbookRatesClient:
 
         categories: Dict[str, Dict] = {}
         for site in sites:
-            cat_id = str(site.get("site_category_id") or "")
+            cat_id = str(site.get("category_id") or site.get("site_category_id") or "")
             if not cat_id:
                 continue
+            if str(site.get("category_active", "1")) == "0":
+                continue
             entry = categories.setdefault(cat_id, {
                 "category_id": cat_id,
-                "category_name": site.get("site_category_name") or f"Category {cat_id}",
+                "category_name": site.get("category_name") or site.get("site_category_name") or f"Category {cat_id}",
                 "room_count": 0,
             })
             entry["room_count"] += 1