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 6bdd298b6bc..03bb6c54905 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
@@ -17,7 +17,7 @@ each specific format.
 - \ref IOStreamGocad
 - \ref IOStream3MF
 - \ref IOStreamWRL
-- \ref IOStreamPkgStreamSupportIoFuncsLas
+- \ref IOStreamLAS
 - \ref IOStreamAvizo
 - \ref IOStreamMedit
 - \ref IOStreamTetgen
@@ -298,7 +298,7 @@ A precise specification of those formats is available
   </tr>
   <tr>
     <td>Any point range</td>
-    <td>\link PkgStreamSupportIoFuncsLas CGAL::IO::read_LAS(const std::string&, PointRange&)\endlink</td>
+    <td>\link PkgStreamSupportIoFuncsLAS CGAL::IO::read_LAS(const std::string&, PointRange&)\endlink</td>
   </tr>
   <tr>
     <td rowspan="2">Output</td>
@@ -331,7 +331,7 @@ of its coordinates and other properties. Only coordinates and normals are curren
   </tr>
   <tr>
     <td>Any point range</td>
-    <td>\link PkgStreamSupportIoFuncsIOXyz CGAL::IO::read_XYZ(const std::string&, PointRange&)\endlink</td>
+    <td>\link PkgStreamSupportIoFuncsIoXYZ CGAL::IO::read_XYZ(const std::string&, PointRange&)\endlink</td>
   </tr>
   <tr>
     <td rowspan="2">Output</td>
@@ -341,7 +341,7 @@ of its coordinates and other properties. Only coordinates and normals are curren
   </tr>
   <tr>
     <td>Any point range</td>
-    <td>\link PkgStreamSupportIoFuncsIOXyz CGAL::IO::write_XYZ(const std::string&, const PointRange&)\endlink</td>
+    <td>\link PkgStreamSupportIoFuncsIOX CGAL::IO::write_XYZ(const std::string&, const PointRange&)\endlink</td>
   </tr>
 </table>
 
diff --git a/Stream_support/doc/Stream_support/PackageDescription.txt b/Stream_support/doc/Stream_support/PackageDescription.txt
index 2d97d36e3c1..de2dfbc7439 100644
--- a/Stream_support/doc/Stream_support/PackageDescription.txt
+++ b/Stream_support/doc/Stream_support/PackageDescription.txt
@@ -36,6 +36,14 @@
 /// I/O Functions for the \ref IOStream3MF
 /// \ingroup IOstreamFunctions
 
+/// \defgroup PkgStreamSupportIoFuncsLAS LAS I/O Functions
+/// I/O Functions for the \ref IOStreamLAS
+/// \ingroup IOstreamFunctions
+
+/// \defgroup PkgStreamSupportIoFuncsXYZ XYZ I/O Functions
+/// I/O Functions for the \ref IOStreamXYZ
+/// \ingroup IOstreamFunctions
+
 /// \defgroup PkgStreamSupportEnumRef I/O Enums
 /// \ingroup PkgStreamSupportRef
 
@@ -99,5 +107,7 @@ the printing mode.
 - \link PkgStreamSupportIoFuncsVTK I/O for VTK files \endlink
 - \link PkgStreamSupportIoFuncs3MF I/O for 3MF files \endlink
 - \link PkgStreamSupportIoFuncsWKT I/O for WKT files \endlink
+- \link PkgStreamSupportIoFuncsLAS I/O for LAS files \endlink
+- \link PkgStreamSupportIoFuncsXYZ I/O for XYZ files \endlink
 
 */
diff --git a/Stream_support/include/CGAL/IO/LAS.h b/Stream_support/include/CGAL/IO/LAS.h
index 65fea06a7b1..2c27c196732 100644
--- a/Stream_support/include/CGAL/IO/LAS.h
+++ b/Stream_support/include/CGAL/IO/LAS.h
@@ -29,7 +29,7 @@ namespace CGAL {
 namespace IO {
 
 /**
-   \ingroup PkgStreamSupportIoFuncsLas
+   \ingroup PkgStreamSupportIoFuncsLAS
 
    generates a %LAS property handler to read 3D points. Points are
    constructed from the input the using 3 %LAS properties
@@ -48,7 +48,7 @@ make_las_point_reader(PointMap point_map);
 
 
 /**
-   \ingroup PkgStreamSupportIoFuncsLas
+   \ingroup PkgStreamSupportIoFuncsLAS
 
    \brief reads user-selected points properties from a .las or .laz stream.
    Potential additional properties are ignored.
@@ -118,7 +118,7 @@ bool read_LAS_with_properties(std::istream& is,
 
 
 /**
-   \ingroup PkgStreamSupportIoFuncsLas
+   \ingroup PkgStreamSupportIoFuncsLAS
 
    \brief reads points (position only) using the \ref IOStreamLAS.
 
@@ -165,7 +165,7 @@ bool read_LAS(std::istream& is,
 
 
 /**
-   \ingroup PkgStreamSupportIoFuncsLas
+   \ingroup PkgStreamSupportIoFuncsLAS
 
    \brief reads points (position only) using the \ref IOStreamLAS.
 
diff --git a/Stream_support/include/CGAL/IO/LAS/Las_property.h b/Stream_support/include/CGAL/IO/LAS/Las_property.h
index 0c0555ce066..58f4eacca78 100644
--- a/Stream_support/include/CGAL/IO/LAS/Las_property.h
+++ b/Stream_support/include/CGAL/IO/LAS/Las_property.h
@@ -73,7 +73,6 @@ typedef Base<unsigned short, Id::G> G;
 typedef Base<unsigned short, Id::B> B;
 typedef Base<unsigned short, Id::I> I;
 } // namespace LAS_property
-/// \endcond
 
 // documenation in ../LAS.h
 template <typename PointMap>
diff --git a/Stream_support/include/CGAL/IO/LAS/read_las_points.h b/Stream_support/include/CGAL/IO/LAS/read_las_points.h
index 84f0fbea0e5..19dd476bf3d 100644
--- a/Stream_support/include/CGAL/IO/LAS/read_las_points.h
+++ b/Stream_support/include/CGAL/IO/LAS/read_las_points.h
@@ -225,7 +225,6 @@ void process_properties (const LASpoint& reader, OutputValueType& new_element,
 } // namespace LAS
 } // namespace internal
 
-/// \endcond
 
 // documenation in ../LAS.h
 template <typename OutputIteratorValueType,
diff --git a/Stream_support/include/CGAL/IO/XYZ.h b/Stream_support/include/CGAL/IO/XYZ.h
index db73ab31b0f..aeb14a5848f 100644
--- a/Stream_support/include/CGAL/IO/XYZ.h
+++ b/Stream_support/include/CGAL/IO/XYZ.h
@@ -29,7 +29,7 @@ namespace CGAL {
 namespace IO {
 
 /**
-   \ingroup PkgStreamSupportIoFuncsIOXyz
+   \ingroup PkgStreamSupportIoFuncsXYZ
 
    \brief reads points (positions + normals, if available), using the \ref IOStreamXYZ.
 
@@ -78,7 +78,7 @@ bool read_XYZ(std::istream& is,
 
 
 /**
-   \ingroup PkgStreamSupportIoFuncsIOXyz
+   \ingroup PkgStreamSupportIoFuncsXYZ
 
    \brief reads points (positions + normals, if available), using the \ref IOStreamXYZ.