diff --git a/rdma/include/uapi/rdma/rdma_netlink.h b/rdma/include/uapi/rdma/rdma_netlink.h
index e161c245..37f583ee 100644
--- a/rdma/include/uapi/rdma/rdma_netlink.h
+++ b/rdma/include/uapi/rdma/rdma_netlink.h
@@ -546,6 +546,9 @@ enum rdma_nldev_attr {
 
 	RDMA_NLDEV_ATTR_MIN_RANGE,		/* u32 */
 	RDMA_NLDEV_ATTR_MAX_RANGE,		/* u32 */
+
+	RDMA_NLDEV_SYS_ATTR_COPY_ON_FORK,	/* u8 */
+
 	/*
 	 * Always the end
 	 */