diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 701e7b4..40ff512 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -730,7 +730,7 @@
 	struct ib_ucontext     *context;	/* associated user context */
 	void		       *object;		/* containing object */
 	struct list_head	list;		/* link to context's list */
-	u32			id;		/* index into kernel idr */
+	int			id;		/* index into kernel idr */
 	struct kref		ref;
 	struct rw_semaphore	mutex;		/* protects .live */
 	int			live;