diff --git a/MOT Capture Process Simulation/+Helper/calculateDistanceFromPointToLine.m b/MOT Capture Process Simulation/+Helper/calculateDistanceFromPointToLine.m
index 45a1244..df5c8c6 100644
--- a/MOT Capture Process Simulation/+Helper/calculateDistanceFromPointToLine.m	
+++ b/MOT Capture Process Simulation/+Helper/calculateDistanceFromPointToLine.m	
@@ -2,7 +2,7 @@ function ret = calculateDistanceFromPointToLine(p0 , p1, p2)
     p01 = p0 - p1;
     p12 = p2 - p1;
     CrossProduct  = [p01(2)*p12(3) - p01(3)*p12(2), p01(3)*p12(1) - p01(1)*p12(3), p01(1)*p12(2) - p01(2)*p12(1)];
-    ret = rssq(CrossProduct) / rssq(p12);
+    ret = norm(CrossProduct) / norm(p12);
     
     %Height of parallelogram (Distance between point and line) = Area of parallelogram / Base
     %Area = One side of parallelogram X Base