diff --git a/lib/onnx/onnx.mli b/lib/onnx/onnx.mli
index 0e946c847a5fb195879acc9f5880716ca5687d6a..2310835faf57b870f2e33e1930f347d0b47ebef1 100644
--- a/lib/onnx/onnx.mli
+++ b/lib/onnx/onnx.mli
@@ -27,7 +27,7 @@ type t = private {
   n_outputs : int;  (** Number of outputs. *)
   nier : (G.t, string) Result.t;  (** Intermediate representation. *)
 }
-(** ONNX model metadata. *)
+(** ONNX model metadata and intermediate representation. *)
 
 val parse : string -> (t, string) Result.t
 (** Parse an ONNX file. *)