diff --git a/chains/compasschain/compassfilter.cpp b/chains/compasschain/compassfilter.cpp
index 1b1c2425..46d3cb8f 100644
--- a/chains/compasschain/compassfilter.cpp
+++ b/chains/compasschain/compassfilter.cpp
@@ -105,7 +105,7 @@ void CompassFilter::accelDataAvailable(unsigned, const AccelerationData *data)
     /* calculate yaw = ecompass angle psi (-180deg, 180deg) */
     Psi = (qAtan2(-fBfy, fBfx) * RADIANS_TO_DEGREES); /* Equation 7 */
 
-    int heading = Psi * FILTER_FACTOR + oldHeading * (1.0 - FILTER_FACTOR);
+    qreal heading = Psi * FILTER_FACTOR + oldHeading * (1.0 - FILTER_FACTOR);
 
     CompassData compassData; //north angle
     compassData.timestamp_ = data->timestamp_;
diff --git a/chains/compasschain/compassfilter.h b/chains/compasschain/compassfilter.h
index 33574ffd..06d3b348 100644
--- a/chains/compasschain/compassfilter.h
+++ b/chains/compasschain/compassfilter.h
@@ -59,7 +59,7 @@ class CompassFilter : public QObject, public FilterBase
     qreal oldMagZ;
 
     int level;
-    int oldHeading;
+    qreal oldHeading;
     QList <int> averagingBuffer;
     QList <const CalibratedMagneticFieldData *> magAvgBuffer;
     QList <const AccelerationData *> accelAvgBuffer;