diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 3333018..e4be34a 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -248,6 +248,7 @@
 	u64			trans_code[MLX4_MAX_PORTS + 1];
 	int			local_ca_ack_delay;
 	int			num_uars;
+	u32			uar_page_size;
 	int			bf_reg_size;
 	int			bf_regs_per_page;
 	int			max_sq_sg;