diff --git a/camera/libcameraservice/CameraHardwareStub.h b/camera/libcameraservice/CameraHardwareStub.h
index 5b445d3..9f5ddf1 100644
--- a/camera/libcameraservice/CameraHardwareStub.h
+++ b/camera/libcameraservice/CameraHardwareStub.h
@@ -33,6 +33,7 @@
 
     virtual status_t    startPreview(preview_callback cb, void* user);
     virtual void        stopPreview();
+    virtual bool        previewEnabled();
     virtual status_t    autoFocus(autofocus_callback, void *user);
     virtual status_t    takePicture(shutter_callback,
                                     raw_callback,