diff --git a/lib/varnish/utils.rb b/lib/varnish/utils.rb
index <HASH>..<HASH> 100644
--- a/lib/varnish/utils.rb
+++ b/lib/varnish/utils.rb
@@ -1,2 +1 @@
-require 'varnish/utils/buffer_set'
 require 'varnish/utils/timer'
Belatedly stop including a file that's been killed.