diff --git a/drivers/infiniband/include/ib_mad.h b/drivers/infiniband/include/ib_mad.h
index 4a6bf67..60378c1 100644
--- a/drivers/infiniband/include/ib_mad.h
+++ b/drivers/infiniband/include/ib_mad.h
@@ -180,6 +180,7 @@
 struct ib_mad_agent {
 	struct ib_device	*device;
 	struct ib_qp		*qp;
+	struct ib_mr		*mr;
 	ib_mad_recv_handler	recv_handler;
 	ib_mad_send_handler	send_handler;
 	ib_mad_snoop_handler	snoop_handler;