diff --git a/binder_bindings/android/brillo/IUpdateEngine.aidl b/binder_bindings/android/brillo/IUpdateEngine.aidl
index c85c0dc..e549a4d 100644
--- a/binder_bindings/android/brillo/IUpdateEngine.aidl
+++ b/binder_bindings/android/brillo/IUpdateEngine.aidl
@@ -21,7 +21,7 @@
 
 interface IUpdateEngine {
   void SetUpdateAttemptFlags(in int flags);
-  void AttemptUpdate(in String app_version, in String omaha_url, in int flags);
+  boolean AttemptUpdate(in String app_version, in String omaha_url, in int flags);
   void AttemptRollback(in boolean powerwash);
   boolean CanRollback();
   void ResetStatus();