diff --git a/dbt/adapters/clickhouse/dbclient.py b/dbt/adapters/clickhouse/dbclient.py
index 65ee1c64..31037f36 100644
--- a/dbt/adapters/clickhouse/dbclient.py
+++ b/dbt/adapters/clickhouse/dbclient.py
@@ -150,7 +150,8 @@ def _server_version(self):
         pass
 
     def update_model_settings(self, model_settings: Dict[str, str], materialization_type: str):
-        model_settings_to_add = copy.deepcopy(self._model_settings[materialization_type])
+        settings = self._model_settings.get(materialization_type, {})
+        model_settings_to_add = copy.deepcopy(settings)
         model_settings_to_add.update(self._model_settings['general'])
         for key, value in model_settings_to_add.items():
             if key not in model_settings: