diff --git a/app/build.gradle b/app/build.gradle
index ef74ded5f..65e32c988 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -34,6 +34,7 @@ dependencies {
     compile 'joda-time:joda-time:2.9.1'
     compile 'com.jakewharton:butterknife:8.0.1'
     compile 'com.github.yukuku:ambilwarna:2.0.1'
+    compile 'com.facebook.stetho:stetho:1.3.1'
 
     apt 'com.jakewharton:butterknife-compiler:8.0.1'
 }
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 8652fd5f0..3d94ae932 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -6,6 +6,7 @@
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
 
     <application
+        android:name=".App"
         android:allowBackup="true"
         android:icon="@mipmap/launcher"
         android:label="@string/app_launcher_name"
diff --git a/app/src/main/java/com/simplemobiletools/calendar/App.java b/app/src/main/java/com/simplemobiletools/calendar/App.java
new file mode 100644
index 000000000..e8bcabb1e
--- /dev/null
+++ b/app/src/main/java/com/simplemobiletools/calendar/App.java
@@ -0,0 +1,13 @@
+package com.simplemobiletools.calendar;
+
+import android.app.Application;
+
+import com.facebook.stetho.Stetho;
+
+public class App extends Application {
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        Stetho.initializeWithDefaults(this);
+    }
+}