diff --git a/MPChartExample/AndroidManifest.xml b/MPChartExample/AndroidManifest.xml
index e9ec221..18d521f 100644
--- a/MPChartExample/AndroidManifest.xml
+++ b/MPChartExample/AndroidManifest.xml
@@ -69,6 +69,7 @@
         <activity android:name=".MyChart1Activity"></activity>
         <activity android:name=".MyChart2Activity"></activity>
         <activity android:name=".MyChart3Activity"></activity>
+        <activity android:name=".MyChart4Activity"></activity>
     </application>
 
 </manifest>