diff --git a/trame_simput/core/proxy.py b/trame_simput/core/proxy.py
index 772163f..4f50836 100644
--- a/trame_simput/core/proxy.py
+++ b/trame_simput/core/proxy.py
@@ -711,6 +711,7 @@ def delete(self, proxy_id, trigger_modified=True):
         before_delete = set(self._id_map.keys())
         # Delete ourself
         proxy_to_delete: Proxy = self._id_map[proxy_id]
+        self.clean_proxy_domains(proxy_to_delete.id)
         del self._id_map[proxy_id]
 
         for tag in proxy_to_delete.tags: