diff --git a/netbox_dns_bridge/request_handler.py b/netbox_dns_bridge/request_handler.py
index a832543..60ead04 100644
--- a/netbox_dns_bridge/request_handler.py
+++ b/netbox_dns_bridge/request_handler.py
@@ -283,8 +283,9 @@ class DNSBaseRequestHandler(socketserver.BaseRequestHandler):
             return
 
         # Check if catalog zone
-        if dname == "catz" or dname == f"{nb_view.name}.catz":
-            zone = catzm.create_zone(dname, nb_view.name)
+        dname_lower = dname.lower()
+        if dname_lower == "catz" or dname_lower == f"{nb_view.name.lower()}.catz":
+            zone = catzm.create_zone(dname_lower, nb_view.name)
         else:
             zone = self._get_zone_from_nb(dname, nb_view.name)
         # When zone was not found, let client know