diff --git a/Stream_support/doc/Stream_support/File_formats/Supported_file_formats.txt b/Stream_support/doc/Stream_support/File_formats/Supported_file_formats.txt
index a1c15f1826f6..f626a2881c1f 100644
--- a/Stream_support/doc/Stream_support/File_formats/Supported_file_formats.txt
+++ b/Stream_support/doc/Stream_support/File_formats/Supported_file_formats.txt
@@ -426,7 +426,7 @@ A precise specification of the format is available <a href="http://gun.teipir.gr
   </tr>
 </table>
 
-\section IOStreamVTK VTK (VTU / VTP) File Formats
+\section IOStreamVTK VTK (VTU / VTP / legacy) File Formats
 
 \attention \cgal needs to be configured with the VTK Libraries for this function to be available.
 
@@ -440,7 +440,9 @@ The VTK libraries use different file formats to handle data structures, but we o
 
 - The `VTP` format can be used to store collections of points, lines, and triangles.
   In the <a href="https://vtk.org/"> VTK Libraries</a>, it is the format
-  reserved to store `PolyData`, and in \cgal, we use it to store Polygon Meshes.
+  reserved to store `PolyData`, and in \cgal, we use it to store polygon meshes.
+
+We additionally provide a read function for the legacy non-XML file `VTK` file format for polygon meshes.
 
 A precise specification of those formats is available at
 <a href="https://vtk.org/wp-content/uploads/2015/04/file-formats.pdf">vtk.org</a>.
diff --git a/Stream_support/include/CGAL/IO/VTK.h b/Stream_support/include/CGAL/IO/VTK.h
index d0f605834db2..304987556980 100644
--- a/Stream_support/include/CGAL/IO/VTK.h
+++ b/Stream_support/include/CGAL/IO/VTK.h
@@ -174,7 +174,7 @@ bool read_VTK(const std::string& fname,
 /*!
  * \ingroup PkgStreamSupportIoFuncsVTP
  *
- * \brief reads the content of the input file into `points` and `polygons`, using the \ref IOStreamVTK.
+ * \brief reads the content of the input file into `points` and `polygons`, using the legacy file format of the \ref IOStreamVTK.
  *
  * \attention The polygon soup is not cleared, and the data from the file are appended.
  *