diff --git a/build.py b/build.py
index 130a207..f1e012a 100644
--- a/build.py
+++ b/build.py
@@ -133,13 +133,13 @@ def build_trash_belt_hook(
             offset(amount=-clip_thickness, mode=Mode.SUBTRACT)
         extrude(amount=hook_width / 2, both=True)
 
-        pln = Plane(trash_belt_hook.faces().sort_by(Axis.Y)[-1].offset(hook_height)).rotated((-45, 0, 0))
-        with BuildSketch(pln) as hook_s:
+        hook_pln = Plane(trash_belt_hook.faces().sort_by(Axis.Y)[-1].offset(hook_height)).rotated((-45, 0, 0))
+        with BuildSketch(hook_pln) as hook_s:
             Rectangle(hook_thickness, hook_width)
             chamfer(hook_s.vertices().group_by(Axis.X)[0], hook_chamfer)
         extrude(until=Until.PREVIOUS)
 
-        with BuildSketch(pln.offset(hook_tip_offset)) as hook_tip:
+        with BuildSketch(hook_pln.offset(hook_tip_offset)) as hook_tip:
             Rectangle(hook_thickness * hook_tip_thickness_p, hook_width * hook_tip_width_p)
             chamfer(hook_tip.vertices().group_by(Axis.X)[0], hook_chamfer * hook_tip_thickness_p)
         loft([hook_s.sketch, hook_tip.sketch])