diff --git a/follow_focus_ring.py b/follow_focus_ring.py
index 2f9d4a7..b94483b 100644
--- a/follow_focus_ring.py
+++ b/follow_focus_ring.py
@@ -11,15 +11,18 @@ follow_focus_width=10.0
 # Constants
 follow_focus_mod=0.8
 follow_focus_inner_thickness=5.0
-follow_focus_num_teeth=int(math.ceil((follow_focus_inner_thickness+lens_ring_diameter)/follow_focus_mod))
+follow_focus_num_teeth=int(math.ceil((follow_focus_inner_thickness+lens_ring_diameter)
+                                     /follow_focus_mod))
 
 # Create follow focus ring
-ring = SpurGear(module=follow_focus_mod, teeth_number=follow_focus_num_teeth,\
-                     width=follow_focus_width, bore_d=lens_ring_diameter)
+ring = SpurGear(module=follow_focus_mod,
+                teeth_number=follow_focus_num_teeth,
+                width=follow_focus_width,
+                bore_d=lens_ring_diameter)
 
 # Render
 wp = cq.Workplane('XY').gear(ring)
 show_object(wp)
 
 # Export STL
-cq.exporters.export(wp, 'follow_focus_ring{}.stl'.format(lens_name))
\ No newline at end of file
+cq.exporters.export(wp, 'follow_focus_ring{}.stl'.format(lens_name))