diff --git a/Android.bp b/Android.bp
index 9e3c084..d4334b6 100644
--- a/Android.bp
+++ b/Android.bp
@@ -1,5 +1,7 @@
 // This file is generated by cargo2android.py --config cargo2android.json.
 // Do not modify this file as changes will be overridden on upgrade.
+// TODO(victorhsieh): Add --test. The test in the current version depends on an older rand crate
+// (pre 0.8) to compile due to several API changes. However, Android's rand is already newer.
 
 package {
     default_applicable_licenses: [