diff --git a/include/linux/mlx5/device.h b/include/linux/mlx5/device.h
index 1d059099226ca20dcf9ebc2232a652a43e4776d8..817a6fae6d2c37ac62c171dc4b2f3f2c91ae9f0a 100644
--- a/include/linux/mlx5/device.h
+++ b/include/linux/mlx5/device.h
@@ -849,8 +849,8 @@ struct mlx5_create_mkey_mbox_in {
 	struct mlx5_mkey_seg	seg;
 	u8			rsvd1[16];
 	__be32			xlat_oct_act_size;
-	__be32			bsf_coto_act_size;
-	u8			rsvd2[168];
+	__be32			rsvd2;
+	u8			rsvd3[168];
 	__be64			pas[0];
 };