diff --git a/hermes_cli/model_switch.py b/hermes_cli/model_switch.py
index f5dcbc49da..22721f9a42 100644
--- a/hermes_cli/model_switch.py
+++ b/hermes_cli/model_switch.py
@@ -1095,6 +1095,7 @@ def list_authenticated_providers(
                 "api_url": api_url,
             })
             seen_slugs.add(ep_name.lower())
+            seen_slugs.add(custom_provider_slug(display_name).lower())
             _pair = (
                 str(display_name).strip().lower(),
                 str(api_url).strip().rstrip("/").lower(),