diff --git a/binder_bindings/android/os/IUpdateEngine.aidl b/binder_bindings/android/os/IUpdateEngine.aidl
index 1e8090e..4245254 100644
--- a/binder_bindings/android/os/IUpdateEngine.aidl
+++ b/binder_bindings/android/os/IUpdateEngine.aidl
@@ -20,6 +20,8 @@
 
 interface IUpdateEngine {
   void applyPayload(String url,
+                    in long payload_offset,
+                    in long payload_size,
                     in String[] headerKeyValuePairs);
   boolean bind(IUpdateEngineCallback callback);
   void suspend();
diff --git a/binder_service_android.cc b/binder_service_android.cc
index 144836a..98943a2 100644
--- a/binder_service_android.cc
+++ b/binder_service_android.cc
@@ -47,6 +47,8 @@
 
 Status BinderUpdateEngineAndroidService::applyPayload(
     const String16& url,
+    int64_t payload_offset,
+    int64_t payload_size,
     const vector<String16>& header_kv_pairs) {
   return Status::ok();
 }
diff --git a/binder_service_android.h b/binder_service_android.h
index 2fb9ca1..4ab19b3 100644
--- a/binder_service_android.h
+++ b/binder_service_android.h
@@ -17,6 +17,8 @@
 #ifndef UPDATE_ENGINE_BINDER_SERVICE_ANDROID_H_
 #define UPDATE_ENGINE_BINDER_SERVICE_ANDROID_H_
 
+#include <stdint.h>
+
 #include <vector>
 
 #include <utils/Errors.h>
@@ -53,6 +55,8 @@
   // android::os::BnUpdateEngine overrides.
   android::binder::Status applyPayload(
       const android::String16& url,
+      int64_t payload_offset,
+      int64_t payload_size,
       const std::vector<android::String16>& header_kv_pairs) override;
 
   android::binder::Status bind(
diff --git a/update_engine_client_android.cc b/update_engine_client_android.cc
index 5cbcd33..3485807 100644
--- a/update_engine_client_android.cc
+++ b/update_engine_client_android.cc
@@ -110,9 +110,16 @@
   DEFINE_string(payload,
                 "http://127.0.0.1:8080/payload",
                 "The URI to the update payload to use.");
+  DEFINE_int64(offset, 0,
+               "The offset in the payload where the CrAU update starts. "
+               "Used when --update is passed.");
+  DEFINE_int64(size, 0,
+               "The size of the CrAU part of the payload. If 0 is passed, it "
+               "will be autodetected. Used when --update is passed.");
   DEFINE_string(headers,
                 "",
-                "A list of key-value pairs, one element of the list per line.");
+                "A list of key-value pairs, one element of the list per line. "
+                "Used when --update is passed.");
 
   DEFINE_bool(suspend, false, "Suspend an ongoing update and exit.");
   DEFINE_bool(resume, false, "Resume a suspended update.");
@@ -187,6 +194,8 @@
     }
     Status status = service_->applyPayload(
         android::String16{FLAGS_payload.data(), FLAGS_payload.size()},
+        FLAGS_offset,
+        FLAGS_size,
         and_headers);
     if (!status.isOk())
       return ExitWhenIdle(status);