diff --git a/pytouchlinesl/module.py b/pytouchlinesl/module.py
index aa9254f..dfd89da 100644
--- a/pytouchlinesl/module.py
+++ b/pytouchlinesl/module.py
@@ -98,6 +98,7 @@ async def zones(self, *, include_off: bool = False, refresh: bool = False) -> li
         """
         data = await self._data(refresh=refresh)
 
+        self._zones = []
         for z in data.zones.elements:
             schedule = await self.schedule_by_idx(z.mode.schedule_index)
             zone = Zone(module=self, client=self._client, zone_data=z, schedule=schedule)