diff --git a/drivers/staging/greybus/bundle.h b/drivers/staging/greybus/bundle.h
index 9134df7930c0..24ddd449034c 100644
--- a/drivers/staging/greybus/bundle.h
+++ b/drivers/staging/greybus/bundle.h
@@ -22,6 +22,7 @@ struct gb_bundle {
 	u8			*state;
 
 	struct list_head	links;	/* interface->bundles */
+	void			*private;
 };
 #define to_gb_bundle(d) container_of(d, struct gb_bundle, dev)