diff --git a/src/__comm__/__line_intersection.scad b/src/__comm__/__line_intersection.scad
index 53334a15..68222d8d 100644
--- a/src/__comm__/__line_intersection.scad
+++ b/src/__comm__/__line_intersection.scad
@@ -6,7 +6,8 @@ function __line_intersection(line_pts1, line_pts2, epsilon = 0.0001) =
         b2 = line_pts2[1],
         a = a2 - a1, 
         b = b2 - b1, 
-        s = b1 - a1
+        s = b1 - a1,
+        c = cross(a, b)
     )
-    abs(cross(a, b)) < epsilon ? [] :  // they are parallel or conincident edges
-        a1 + a * cross(s, b) / cross(a, b);
\ No newline at end of file
+    abs(c) < epsilon ? [] :  // they are parallel or conincident edges
+        a1 + a * cross(s, b) / c;
\ No newline at end of file