diff --git a/doc/dox/internals/protocol.dox b/doc/dox/internals/protocol.dox
index 37a99c8f8..7a62247a8 100644
--- a/doc/dox/internals/protocol.dox
+++ b/doc/dox/internals/protocol.dox
@@ -712,7 +712,7 @@ The info event is emitted when binding or when the device information changed.
       ): props
       Struct(
          Int: n_params
-	 ( Int: id
+	 ( Id: id
 	   Int: flags )*
       ): param_info
    )