diff --git a/README.md b/README.md
index f8aa178..711c0c9 100644
--- a/README.md
+++ b/README.md
@@ -134,6 +134,7 @@ class EbitenViewWithErrorHandling extends EbitenView {
     android:layout_height="match_parent"
     android:background="@color/background_material_dark"
     android:keepScreenOn="true"
+    android:screenOrientation="portrait"
     tools:context="com.<your-username>.skullsmobile.MainActivity">
 
     <com.<your-username>.skullsmobile.EbitenViewWithErrorHandling