diff --git a/samples/3d-model-viewer/src/main/res/layout/activity_main.xml b/samples/3d-model-viewer/src/main/res/layout/activity_main.xml
index b8f41986..5dc51e7a 100644
--- a/samples/3d-model-viewer/src/main/res/layout/activity_main.xml
+++ b/samples/3d-model-viewer/src/main/res/layout/activity_main.xml
@@ -26,7 +26,8 @@
             android:id="@+id/transparentSceneView"
             android:layout_width="match_parent"
             android:layout_height="0dp"
-            android:layout_weight="1"/>
+            android:layout_weight="1"
+            android:background="@android:color/transparent"/>
     </LinearLayout>
 
 </FrameLayout>