diff --git a/doc/build_android.md b/doc/build_android.md
index 33b99545159bc075756b47883ed4297c41886a1b..681509ea77fca78199d8ee2ff5ea62ba3ab9b33f 100644
--- a/doc/build_android.md
+++ b/doc/build_android.md
@@ -2,6 +2,8 @@
 
 Cesium can be build as Android App.
 
+Cesium use [Ionic Framework v1.7.16](http://ionicframework.com/docs/v1/) with some Apache Cordova plugins.
+
 ## Prerequisites
 
 ### Install build tools