diff --git a/Kernel_23/doc/Kernel_23/CGAL/Weighted_point_3.h b/Kernel_23/doc/Kernel_23/CGAL/Weighted_point_3.h
index 299f8c6bbc8..cef4445a0a3 100644
--- a/Kernel_23/doc/Kernel_23/CGAL/Weighted_point_3.h
+++ b/Kernel_23/doc/Kernel_23/CGAL/Weighted_point_3.h
@@ -61,7 +61,7 @@ public:
   /*!
   introduces a weighted point with coordinates `x`, `y`, `z` and weight `0`.
   */
-  Weighted_point_3(const Kernel::FT& x, const Kernel::FT& y, const Kernel::FT& Z);
+  Weighted_point_3(const Kernel::FT& x, const Kernel::FT& y, const Kernel::FT& z);
 
   /// @}