diff --git a/app/build.gradle b/app/build.gradle
index a8d0fe4..9d30bf6 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -4,9 +4,8 @@ apply plugin: 'me.tatarka.retrolambda'
 android {
     compileSdkVersion 23
     buildToolsVersion "23.0.2"
-
     defaultConfig {
-        applicationId "id.zelory.sischat"
+        applicationId 'id.sis.chat'
         minSdkVersion 15
         targetSdkVersion 23
         versionCode 1
@@ -27,6 +26,8 @@ android {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
     }
+    productFlavors {
+    }
 }
 
 buildscript {
diff --git a/app/src/androidTest/java/id/zelory/sischat/ApplicationTest.java b/app/src/androidTest/java/id/sis/chat/ApplicationTest.java
similarity index 92%
rename from app/src/androidTest/java/id/zelory/sischat/ApplicationTest.java
rename to app/src/androidTest/java/id/sis/chat/ApplicationTest.java
index f03c48a..c31db1e 100644
--- a/app/src/androidTest/java/id/zelory/sischat/ApplicationTest.java
+++ b/app/src/androidTest/java/id/sis/chat/ApplicationTest.java
@@ -1,4 +1,4 @@
-package id.zelory.sischat;
+package id.sis.chat;
 
 import android.app.Application;
 import android.test.ApplicationTestCase;
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 222a69e..bc0b689 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -1,18 +1,20 @@
 <?xml version="1.0" encoding="utf-8"?>
-<manifest package="id.zelory.sischat"
-          xmlns:android="http://schemas.android.com/apk/res/android">
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    package="id.zelory.sischat" >
+
+    <uses-permission android:name="android.permission.INTERNET" />
 
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:supportsRtl="true"
-        android:theme="@style/AppTheme">
-        <activity android:name=".MainActivity">
+        android:theme="@style/AppTheme" >
+        <activity android:name="id.sis.chat.MainActivity" >
             <intent-filter>
-                <action android:name="android.intent.action.MAIN"/>
+                <action android:name="android.intent.action.MAIN" />
 
-                <category android:name="android.intent.category.LAUNCHER"/>
+                <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
     </application>
diff --git a/app/src/main/java/id/zelory/sischat/MainActivity.java b/app/src/main/java/id/sis/chat/MainActivity.java
similarity index 85%
rename from app/src/main/java/id/zelory/sischat/MainActivity.java
rename to app/src/main/java/id/sis/chat/MainActivity.java
index d94a9b3..13a1b41 100644
--- a/app/src/main/java/id/zelory/sischat/MainActivity.java
+++ b/app/src/main/java/id/sis/chat/MainActivity.java
@@ -1,8 +1,10 @@
-package id.zelory.sischat;
+package id.sis.chat;
 
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
 
+import id.zelory.sischat.R;
+
 public class MainActivity extends AppCompatActivity {
 
     @Override
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index 7b8d002..ab90c7a 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -8,7 +8,7 @@
     android:paddingLeft="@dimen/activity_horizontal_margin"
     android:paddingRight="@dimen/activity_horizontal_margin"
     android:paddingTop="@dimen/activity_vertical_margin"
-    tools:context="id.zelory.sischat.MainActivity">
+    tools:context="id.sis.chat.MainActivity">
 
     <TextView
         android:layout_width="wrap_content"
diff --git a/app/src/test/java/id/zelory/sischat/ExampleUnitTest.java b/app/src/test/java/id/sis/chat/ExampleUnitTest.java
similarity index 91%
rename from app/src/test/java/id/zelory/sischat/ExampleUnitTest.java
rename to app/src/test/java/id/sis/chat/ExampleUnitTest.java
index 0ff8fac..803541e 100644
--- a/app/src/test/java/id/zelory/sischat/ExampleUnitTest.java
+++ b/app/src/test/java/id/sis/chat/ExampleUnitTest.java
@@ -1,4 +1,4 @@
-package id.zelory.sischat;
+package id.sis.chat;
 
 import org.junit.Test;