diff --git a/platypush/backend/sensor/__init__.py b/platypush/backend/sensor/__init__.py
index 3a6bb475..8b31ba1a 100644
--- a/platypush/backend/sensor/__init__.py
+++ b/platypush/backend/sensor/__init__.py
@@ -29,6 +29,7 @@ class SensorBackend(Backend):
 
     def run(self):
         super().run()
+        self.logger.info('Initialized {} sensor backend'.format(self.__class__.__name__))
 
         while not self.should_stop():
             new_data = self.get_measurement()
diff --git a/platypush/backend/sensor/serial.py b/platypush/backend/sensor/serial.py
index 4c3fbd32..cda03f1a 100644
--- a/platypush/backend/sensor/serial.py
+++ b/platypush/backend/sensor/serial.py
@@ -1,21 +1,12 @@
-import serial
-
 from platypush.backend.sensor import SensorBackend
 from platypush.context import get_plugin
 
 
 class SensorSerialBackend(SensorBackend):
-    def __init__(self, *args, **kwargs):
-        super().__init__(*args, **kwargs)
-
     def get_measurement(self):
         plugin = get_plugin('serial')
         return plugin.get_data().output
 
-    def run(self):
-        self.logger.info('Initialized serial backend')
-        super().run()
-
 
 # vim:sw=4:ts=4:et: