diff --git a/basyx/aas/adapter/http.py b/basyx/aas/adapter/http.py
index 7bda980f1..6966d98c6 100644
--- a/basyx/aas/adapter/http.py
+++ b/basyx/aas/adapter/http.py
@@ -662,7 +662,7 @@ def post_submodel(self, request: Request, url_args: Dict, map_adapter: MapAdapte
 
     def delete_submodel(self, request: Request, url_args: Dict, **_kwargs) -> Response:
         response_t = get_response_type(request)
-        self.object_store.remove(self._get_obj_ts(url_args["aas_id"], model.Submodel))
+        self.object_store.remove(self._get_obj_ts(url_args["submodel_id"], model.Submodel))
         return response_t()
 
     # --------- SUBMODEL ROUTES ---------