diff --git a/VoldNativeService.h b/VoldNativeService.h
index 50244d2..b6b5d75 100644
--- a/VoldNativeService.h
+++ b/VoldNativeService.h
@@ -31,6 +31,8 @@
     static char const* getServiceName() { return "vold"; }
     virtual status_t dump(int fd, const Vector<String16> &args) override;
 
+    binder::Status setListener(const android::sp<android::os::IVoldListener>& listener);
+
     binder::Status reset();
     binder::Status shutdown();
     binder::Status mountAll();