diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index 236eadd..58f520c 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -10,7 +10,9 @@
                   android:windowSoftInputMode="stateAlwaysHidden">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.LAUNCHER" />
+                <category android:name="android.intent.category.APP_CALCULATOR" />
             </intent-filter>
         </activity>
     </application>