diff --git a/platypush/backend/sensor/mcp3008.py b/platypush/backend/sensor/mcp3008.py
index 4e2ed3334..9564b5d80 100644
--- a/platypush/backend/sensor/mcp3008.py
+++ b/platypush/backend/sensor/mcp3008.py
@@ -39,6 +39,7 @@ class SensorMcp3008Backend(Backend):
             if new_measurement:
                 self.bus.post(SensorDataChangeEvent(sensors=new_measurement))
 
+            self.last_measurement = measurement
             time.sleep(self.poll_seconds)