diff --git a/src/__private__/__edges_from.scad b/src/__private__/__edges_from.scad
index 97f27ad2..d19d13a2 100644
--- a/src/__private__/__edges_from.scad
+++ b/src/__private__/__edges_from.scad
@@ -1,7 +1,7 @@
-function __edges_from(pts) = 
+function __edges_from(pts, closed = true) = 
     let(leng = len(pts))
     concat(
         [for(i = [0:leng - 2]) [pts[i], pts[i + 1]]], 
-        [[pts[len(pts) - 1], pts[0]]]
+        closed ? [[pts[len(pts) - 1], pts[0]]] : []
     );
     
\ No newline at end of file