diff --git a/Point_set_processing_3/include/CGAL/IO/read_las_points.h b/Point_set_processing_3/include/CGAL/IO/read_las_points.h
index 54bb623ba3f..612f5baea5c 100644
--- a/Point_set_processing_3/include/CGAL/IO/read_las_points.h
+++ b/Point_set_processing_3/include/CGAL/IO/read_las_points.h
@@ -268,7 +268,7 @@ namespace internal {
 /// Potential additional properties are ignored.
 ///
 /// Properties are handled through a variadic list of property
-/// handlers. A property handle can either be:
+/// handlers. A property handler can either be:
 ///
 ///  - A `std::pair<PropertyMap, LASProperty >` if the user wants to
 ///  read a LAS property as a scalar value `LASProperty::type` (for
@@ -315,7 +315,7 @@ namespace internal {
 /// @tparam OutputIterator iterator over output points.
 /// @tparam PropertyHandler handlers to recover properties.
 ///
-/// @return true on success.
+/// @return `true` on success.
 
 // This variant requires all parameters.
 //-----------------------------------------------------------------------------------
diff --git a/Point_set_processing_3/include/CGAL/IO/read_ply_points.h b/Point_set_processing_3/include/CGAL/IO/read_ply_points.h
index 348c4922cba..d4630a0c7f5 100644
--- a/Point_set_processing_3/include/CGAL/IO/read_ply_points.h
+++ b/Point_set_processing_3/include/CGAL/IO/read_ply_points.h
@@ -561,7 +561,7 @@ namespace internal {
 /// @tparam OutputIterator iterator over output points.
 /// @tparam PropertyHandler handlers to recover properties.
 ///
-/// @return true on success.
+/// @return `true` on success.
 
 // This variant requires all parameters.
 //-----------------------------------------------------------------------------------
@@ -631,7 +631,7 @@ bool read_ply_points_with_properties (std::istream& stream,
 /// @tparam PointPMap is a model of `WritablePropertyMap` with  value type `CGAL::Point_3`.
 /// @tparam NormalPMap is a model of `WritablePropertyMap` with value type `CGAL::Vector_3`.
 ///
-/// @return true on success.
+/// @return `true` on success.
 
 // This variant requires all parameters.
 //-----------------------------------------------------------------------------------
diff --git a/Point_set_processing_3/include/CGAL/IO/write_las_points.h b/Point_set_processing_3/include/CGAL/IO/write_las_points.h
index abce346d001..91e3ad2be2a 100644
--- a/Point_set_processing_3/include/CGAL/IO/write_las_points.h
+++ b/Point_set_processing_3/include/CGAL/IO/write_las_points.h
@@ -159,7 +159,7 @@ namespace internal {
 /// @tparam PointMap is a model of `ReadablePropertyMap` with a value_type = `CGAL::Point_3`.
 /// @tparam PropertyHandler handlers to recover properties.
 ///
-/// @return true on success.
+/// @return `true` on success.
 template <typename ForwardIterator,
           typename PointMap,
           typename ... PropertyHandler>
@@ -229,7 +229,7 @@ bool write_las_points_with_properties (std::ostream& stream,  ///< output stream
 /// @tparam PointMap is a model of `ReadablePropertyMap` with a value_type = `Point_3<Kernel>`.
 ///        It can be omitted if the value type of `ForwardIterator` is convertible to `Point_3<Kernel>`.
 ///
-/// @return true on success.
+/// @return `true` on success.
 
 // This variant requires all parameters.
 template < typename ForwardIterator,
diff --git a/Point_set_processing_3/include/CGAL/IO/write_ply_points.h b/Point_set_processing_3/include/CGAL/IO/write_ply_points.h
index af1423b5f8e..91f6392df14 100644
--- a/Point_set_processing_3/include/CGAL/IO/write_ply_points.h
+++ b/Point_set_processing_3/include/CGAL/IO/write_ply_points.h
@@ -272,7 +272,7 @@ namespace internal {
 /// @tparam ForwardIterator iterator over input points.
 /// @tparam PropertyHandler handlers to recover properties.
 ///
-/// @return true on success.
+/// @return `true` on success.
 template < typename ForwardIterator,
            typename ... PropertyHandler>
 bool
@@ -324,7 +324,7 @@ write_ply_points_with_properties(
 ///        It can be omitted if the value type of `ForwardIterator` is convertible to `Point_3<Kernel>`.
 /// @tparam VectorMap is a model of `ReadablePropertyMap` with a value type  `Vector_3<Kernel>`.
 ///
-/// @return true on success.
+/// @return `true` on success.
 
 // This variant requires all parameters.
 template < typename ForwardIterator,
@@ -377,7 +377,7 @@ write_ply_points_and_normals(
 /// @tparam PointMap is a model of `ReadablePropertyMap` with a value_type = `Point_3<Kernel>`.
 ///        It can be omitted if the value type of `ForwardIterator` is convertible to `Point_3<Kernel>`.
 ///
-/// @return true on success.
+/// @return `true` on success.
 
 // This variant requires all parameters.
 template < typename ForwardIterator,