diff --git a/scripts/generate_kwargs_lib.rb b/scripts/generate_kwargs_lib.rb
index 5d2b15285b792b7a42afaad08f416d2d7616e1d0..d45c4dfc77ccc6a4fbd808a0512cd5489f5d75f8 100644
--- a/scripts/generate_kwargs_lib.rb
+++ b/scripts/generate_kwargs_lib.rb
@@ -108,8 +108,6 @@ class Generator
 
   def generate_preamble(out)
     out.puts <<-END
-require 'fox16'
-
 old_verbose = $VERBOSE; $VERBOSE = nil
 
 module Fox