diff --git a/opengl/tests/gldual/AndroidManifest.xml b/opengl/tests/gldual/AndroidManifest.xml
index a36f4f7..d6335b0 100644
--- a/opengl/tests/gldual/AndroidManifest.xml
+++ b/opengl/tests/gldual/AndroidManifest.xml
@@ -20,8 +20,9 @@
             android:label="@string/gldual_activity">
         <activity android:name="GLDualActivity"
                 android:theme="@android:style/Theme.NoTitleBar.Fullscreen"
-            	android:launchMode="singleTask"
-            	android:configChanges="orientation|keyboardHidden">
+                android:launchMode="singleTask"
+                android:configChanges="orientation|keyboardHidden"
+                android:exported="true">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />