diff --git a/src/main/java/de/dennisguse/opentracks/sensors/SensorManager.java b/src/main/java/de/dennisguse/opentracks/sensors/SensorManager.java
index 520af52e2..f76ce1993 100644
--- a/src/main/java/de/dennisguse/opentracks/sensors/SensorManager.java
+++ b/src/main/java/de/dennisguse/opentracks/sensors/SensorManager.java
@@ -51,11 +51,11 @@ public class SensorManager {
         gpsManager = new GPSManager(observer); //TODO Pass listener
         gpsManager.start(context, handler);
 
-        bluetoothSensorManager = new BluetoothRemoteSensorManager(context, handler, listener);
-        bluetoothSensorManager.start(context, handler);
-
         altitudeSumManager = new AltitudeSumManager();
+        bluetoothSensorManager = new BluetoothRemoteSensorManager(context, handler, listener);
+
         altitudeSumManager.start(context, handler);
+        bluetoothSensorManager.start(context, handler);
     }
 
     public void stop(Context context) {