diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 0e4a626..add5a0e 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
+          xmlns:tools="http://schemas.android.com/tools"
           package="name.caiyao.microreader">
 
     <uses-permission android:name="android.permission.INTERNET"/>
@@ -11,6 +12,11 @@
     <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
     <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
 
+    <uses-permission
+        android:name="android.permission.SYSTEM_ALERT_WINDOW"
+        tools:node="remove">
+    </uses-permission>
+
     <application
         android:name=".MicroApplication"
         android:icon="@drawable/icon"