diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 96f6b8b..8d845f6 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -9,7 +9,8 @@
     android:icon="@drawable/ic_launcher">
     <activity
       android:name="MainOpenGL"
-      android:label="@string/app_name">
+      android:label="@string/app_name"
+      android:screenOrientation="landscape">
         <intent-filter>
             <action android:name="android.intent.action.MAIN" />
             <category android:name="android.intent.category.LAUNCHER" />