diff --git a/processing_app/library/vector_utils/spiral.rb b/processing_app/library/vector_utils/spiral.rb
index 2bb2cdd..b3cbc01 100644
--- a/processing_app/library/vector_utils/spiral.rb
+++ b/processing_app/library/vector_utils/spiral.rb
@@ -1,7 +1,7 @@
 #!/usr/bin/env jruby -v -W2
 # frozen_string_literal: true
 require 'propane'
-require 'arcball'
+
 class SpiralLayout < Propane::App
   load_library :vector_utils