diff --git a/src/helix_extrude.scad b/src/helix_extrude.scad
index e8a1efcc..1083ae18 100644
--- a/src/helix_extrude.scad
+++ b/src/helix_extrude.scad
@@ -44,7 +44,11 @@ module helix_extrude(shape_pts, radius, levels, level_dist,
     );
 
     clk_a = r_dir == 1 ? 0 : 180;
-    angles = [for(i = 0; i < len(path_points); i = i + 1) [90 + initial_angle, 0, clk_a + angle_step * i]];
+    ax = 90 + initial_angle;
+    angles = [
+        for(i = 0; i < len(path_points); i = i + 1) 
+            [ax, 0, clk_a + angle_step * i]
+    ];
     
     sections = cross_sections(shape_pts, path_points, angles, twist, scale);