diff --git a/src/ol/deviceorientation.js b/src/ol/deviceorientation.js
index aab556ebef..b7d87fe9b9 100644
--- a/src/ol/deviceorientation.js
+++ b/src/ol/deviceorientation.js
@@ -140,6 +140,7 @@ ol.DeviceOrientation.prototype.orientationChange_ = function(browserEvent) {
     this.set(ol.DeviceOrientationProperty.GAMMA,
         goog.math.toRadians(event.gamma));
   }
+  this.dispatchChangeEvent();
 };