diff --git a/axis_to_scrollwheel.py b/axis_to_scrollwheel.py
index 8872a56..bea6ab1 100644
--- a/axis_to_scrollwheel.py
+++ b/axis_to_scrollwheel.py
@@ -47,7 +47,6 @@ scroll_scaling = scroll_speed.value if scroll_speed.value != 0.0 else 1.0
 def handle_axis(event):
   global last_timestamp
   global damping
-  global ticks # debug
 
   # TODO: use this code instead when periodic callback is fixed
   # axis_value = joy[axis.device_guid].axis(axis.input_id).value