diff --git a/Kernel_23/doc/Kernel_23/CGAL/Cartesian_converter.h b/Kernel_23/doc/Kernel_23/CGAL/Cartesian_converter.h
index 3294a90c688..4b365aac862 100644
--- a/Kernel_23/doc/Kernel_23/CGAL/Cartesian_converter.h
+++ b/Kernel_23/doc/Kernel_23/CGAL/Cartesian_converter.h
@@ -48,7 +48,7 @@ Cartesian_converter<>();
 /// @{
 
 /*!
-returns a `K2::Point_2` which coordinates are those of `p`,
+returns a `K2::Point_2` whose coordinates are those of `p`,
 converted by `NTConverter`.
 */
 K2::Point_2 operator()(const K1::Point_2&p);