diff --git a/SketchWidget.py b/SketchWidget.py
index 84b92fc..a61f474 100644
--- a/SketchWidget.py
+++ b/SketchWidget.py
@@ -96,8 +96,8 @@ class SketchWidget:
         return ((pt[0] - self.view_center[0]) / self.view_width * self.size[0]
                     + self.size[0] / 2,
                 (pt[1] - self.view_center[1]) /
-                    (self.view_width * self.size[1] / self.size[0]
-                        * self.size[1] + self.size[1] / 2))
+                    (self.view_width * self.size[1] / self.size[0])
+                        * self.size[1] + self.size[1] / 2)
 
     def distToScreenDist(self, dist):
         return dist / self.view_width * self.size[0]