diff --git a/Kernel_23/doc/Kernel_23/CGAL/Weighted_point_2.h b/Kernel_23/doc/Kernel_23/CGAL/Weighted_point_2.h
index a61368add0e..2b0fe496d5e 100644
--- a/Kernel_23/doc/Kernel_23/CGAL/Weighted_point_2.h
+++ b/Kernel_23/doc/Kernel_23/CGAL/Weighted_point_2.h
@@ -50,7 +50,7 @@ public:
   /*!
   introduces a weighted point from point `p` and weight `0`.
   \cgalEpicExact
-  
+
   \warning The `explicit` keyword is used to avoid accidental implicit conversions
            between Point_2 and Weighted_point_2.
   */
@@ -162,7 +162,7 @@ public:
   /*!
   returns the i'th %Cartesian coordinate of `p`.
   \pre  `0 <= i <= 1`
-  
+
   \cgalEpicExact
   */
   Kernel::FT cartesian(int i) const;
@@ -170,7 +170,7 @@ public:
   /*!
   returns `cartesian(i)`.
   \pre  `0 <= i <= 1`
-  
+
   \cgalEpicExact
   */
   Kernel::FT operator[](int i) const;