diff --git a/include/linux/mlx5/qp.h b/include/linux/mlx5/qp.h
index 64221027bf1f0d8bdaa2a1506e18da338e0f0c1e..1532dcf6fc5e8ccc79c39d2c7b41f06a07f07066 100644
--- a/include/linux/mlx5/qp.h
+++ b/include/linux/mlx5/qp.h
@@ -560,6 +560,7 @@ struct mlx5_modify_qp_mbox_in {
 	__be32			optparam;
 	u8			rsvd0[4];
 	struct mlx5_qp_context	ctx;
+	u8			rsvd2[16];
 };
 
 struct mlx5_modify_qp_mbox_out {