diff --git a/libc/kernel/uapi/rdma/mlx5-abi.h b/libc/kernel/uapi/rdma/mlx5-abi.h
index 4c85c6c..f1ab147 100644
--- a/libc/kernel/uapi/rdma/mlx5-abi.h
+++ b/libc/kernel/uapi/rdma/mlx5-abi.h
@@ -164,6 +164,7 @@
   MLX5_IB_QUERY_DEV_RESP_FLAGS_CQE_128B_COMP = 1 << 0,
   MLX5_IB_QUERY_DEV_RESP_FLAGS_CQE_128B_PAD = 1 << 1,
   MLX5_IB_QUERY_DEV_RESP_PACKET_BASED_CREDIT_MODE = 1 << 2,
+  MLX5_IB_QUERY_DEV_RESP_FLAGS_SCAT2CQE_DCT = 1 << 3,
 };
 enum mlx5_ib_tunnel_offloads {
   MLX5_IB_TUNNELED_OFFLOADS_VXLAN = 1 << 0,