diff --git a/providers/mlx5/man/mlx5dv_create_flow_action_modify_header.3.md b/providers/mlx5/man/mlx5dv_create_flow_action_modify_header.3.md
index 54f1c1c89..f89665f0e 100644
--- a/providers/mlx5/man/mlx5dv_create_flow_action_modify_header.3.md
+++ b/providers/mlx5/man/mlx5dv_create_flow_action_modify_header.3.md
@@ -34,7 +34,7 @@ Create a modify header flow steering action, it allows mutating a packet header.
 :	The size of *actions* buffer in bytes.
 
 *actions*
-:	A buffer which contains modify actions provided in device spec format.
+:	A buffer which contains modify actions provided in device spec format (i.e. be64).
 
 *ft_type*
 :	Defines the flow table type to which the modify header action will be attached.