diff --git a/cbpi/__init__.py b/cbpi/__init__.py
index 2c56255..497a4df 100644
--- a/cbpi/__init__.py
+++ b/cbpi/__init__.py
@@ -1,3 +1,3 @@
-__version__ = "4.1.7.rc2"
+__version__ = "4.1.7.rc3"
 __codename__ = "Groundhog Day"
 
diff --git a/cbpi/extension/mqtt_sensor/__init__.py b/cbpi/extension/mqtt_sensor/__init__.py
index bec2799..b6c8d09 100644
--- a/cbpi/extension/mqtt_sensor/__init__.py
+++ b/cbpi/extension/mqtt_sensor/__init__.py
@@ -129,6 +129,7 @@ class MQTTSensor(CBPiSensor):
         return dict(value=self.value)
 
     async def on_stop(self):
+        was_cancelled=False
         if not self.mqtt_task.done():
             logging.info("Task not done -> cancelling")
             was_cancelled = self.mqtt_task.cancel()