diff --git a/src/Mod/CAM/libarea/clipper.cpp b/src/Mod/CAM/libarea/clipper.cpp
index 28b8394a67..7201194000 100644
--- a/src/Mod/CAM/libarea/clipper.cpp
+++ b/src/Mod/CAM/libarea/clipper.cpp
@@ -4832,10 +4832,10 @@ inline double DistanceSqrd(const IntPoint& pt1, const IntPoint& pt2)
 double DistanceFromLineSqrd(const IntPoint& pt, const IntPoint& ln1, const IntPoint& ln2)
 {
     // The equation of a line in general form (Ax + By + C = 0)
-    // given 2 points (x¹,y¹) & (x²,y²) is ...
-    //(y¹ - y²)x + (x² - x¹)y + (y² - y¹)x¹ - (x² - x¹)y¹ = 0
-    // A = (y¹ - y²); B = (x² - x¹); C = (y² - y¹)x¹ - (x² - x¹)y¹
-    // perpendicular distance of point (x³,y³) = (Ax³ + By³ + C)/Sqrt(A² + B²)
+    // given 2 points (x¹,y¹) & (x²,y²) is ...
+    //(y¹ - y²)x + (x² - x¹)y + (y² - y¹)x¹ - (x² - x¹)y¹ = 0
+    // A = (y¹ - y²); B = (x² - x¹); C = (y² - y¹)x¹ - (x² - x¹)y¹
+    // perpendicular distance of point (x³,y³) = (Ax³ + By³ + C)/Sqrt(A² + B²)
     // see http://en.wikipedia.org/wiki/Perpendicular_distance
     double A = double(ln1.Y - ln2.Y);
     double B = double(ln2.X - ln1.X);