diff --git a/src/Sensors/Orientation.ts b/src/Sensors/Orientation.ts
index ca71cf2b51..e9d28ffd3f 100644
--- a/src/Sensors/Orientation.ts
+++ b/src/Sensors/Orientation.ts
@@ -77,6 +77,9 @@ export class Orientation {
     }
 
     private update(event: DeviceOrientationEvent) {
+        if(event.alpha === null || event.beta === null || event.gamma === null){
+            return
+        }
         this.gotMeasurement.setData(true)
         // IF the phone is lying flat, then:
         // alpha is the compass direction (but not absolute)