diff --git a/custom_components/localtuya/switch.py b/custom_components/localtuya/switch.py
index 1eb8529..e3737eb 100644
--- a/custom_components/localtuya/switch.py
+++ b/custom_components/localtuya/switch.py
@@ -224,7 +224,7 @@ class TuyaDevice(SwitchEntity):
     @property
     def unique_id(self):
         """Return unique device identifier."""
-        return f"local_{self._device.unique_id}"
+        return f"local_{self._device.unique_id}_{self._switch_id}"
 
     @property
     def available(self):