diff --git a/src/core/graphics/webgl/GraphicsRenderer.js b/src/core/graphics/webgl/GraphicsRenderer.js
index 79047e4..99bb271 100644
--- a/src/core/graphics/webgl/GraphicsRenderer.js
+++ b/src/core/graphics/webgl/GraphicsRenderer.js
@@ -716,7 +716,7 @@
         py = (a2*c1 - a1*c2)/denom;
 
 
-        pdist = (px -p2x) * (px -p2x) + (py -p2y) + (py -p2y);
+        pdist = (px -p2x) * (px -p2x) + (py -p2y) * (py -p2y);
 
 
         if (pdist > 140 * 140)