diff --git a/README.android b/README.android
index fd2b1c98..af83ed22 100644
--- a/README.android
+++ b/README.android
@@ -38,7 +38,7 @@ See `the online manual
 Notes
 -----
 
-aria2c executable was generated using android-ndk-r8e.
+aria2c executable was generated using android-ndk-r9.
 
 The following libraries were statically linked.