diff --git a/binder_bindings/android/os/IUpdateEngine.aidl b/binder_bindings/android/os/IUpdateEngine.aidl
index ebc3ffb..1e8090e 100644
--- a/binder_bindings/android/os/IUpdateEngine.aidl
+++ b/binder_bindings/android/os/IUpdateEngine.aidl
@@ -16,12 +16,12 @@
 
 package android.os;
 
-import android.os.IUpdateEnginePayloadApplicationCallback;
+import android.os.IUpdateEngineCallback;
 
 interface IUpdateEngine {
-  int applyPayload(String url,
-                   in String[] headerKeyValuePairs,
-                   IUpdateEnginePayloadApplicationCallback callback);
+  void applyPayload(String url,
+                    in String[] headerKeyValuePairs);
+  boolean bind(IUpdateEngineCallback callback);
   void suspend();
   void resume();
   void cancel();
diff --git a/binder_bindings/android/os/IUpdateEnginePayloadApplicationCallback.aidl b/binder_bindings/android/os/IUpdateEngineCallback.aidl
similarity index 92%
rename from binder_bindings/android/os/IUpdateEnginePayloadApplicationCallback.aidl
rename to binder_bindings/android/os/IUpdateEngineCallback.aidl
index 871ef1d..729abdd 100644
--- a/binder_bindings/android/os/IUpdateEnginePayloadApplicationCallback.aidl
+++ b/binder_bindings/android/os/IUpdateEngineCallback.aidl
@@ -16,7 +16,7 @@
 
 package android.os;
 
-oneway interface IUpdateEnginePayloadApplicationCallback {
+oneway interface IUpdateEngineCallback {
   void onStatusUpdate(int status_code, float percentage);
   void onPayloadApplicationComplete(int error_code);
 }