diff --git a/core/java/com/android/internal/app/NetInitiatedActivity.java b/core/java/com/android/internal/app/NetInitiatedActivity.java
index 375e5036c0836..f34aabbeded66 100644
--- a/core/java/com/android/internal/app/NetInitiatedActivity.java
+++ b/core/java/com/android/internal/app/NetInitiatedActivity.java
@@ -16,6 +16,8 @@
 
 package com.android.internal.app;
 
+import static android.view.WindowManager.LayoutParams.SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS;
+
 import android.app.AlertDialog;
 import android.content.Context;
 import android.content.DialogInterface;
@@ -69,6 +71,8 @@ public class NetInitiatedActivity extends AlertActivity implements DialogInterfa
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
 
+        getWindow().addSystemFlags(SYSTEM_FLAG_HIDE_NON_SYSTEM_OVERLAY_WINDOWS);
+
         // Set up the "dialog"
         final Intent intent = getIntent();
         final AlertController.AlertParams p = mAlertParams;