diff --git a/VoldNativeService.h b/VoldNativeService.h
index 4578dc0..7065b04 100644
--- a/VoldNativeService.h
+++ b/VoldNativeService.h
@@ -133,6 +133,7 @@
     binder::Status startCheckpoint(int32_t retry);
     binder::Status needsCheckpoint(bool* _aidl_return);
     binder::Status needsRollback(bool* _aidl_return);
+    binder::Status isCheckpointing(bool* _aidl_return);
     binder::Status commitChanges();
     binder::Status prepareCheckpoint();
     binder::Status restoreCheckpoint(const std::string& mountPoint);