diff --git a/collects/tests/mzscheme/benchmarks/shootout/k-nucleotide.ss b/collects/tests/mzscheme/benchmarks/shootout/k-nucleotide.ss
index 8f5d121c41..ce423b3e25 100644
--- a/collects/tests/mzscheme/benchmarks/shootout/k-nucleotide.ss
+++ b/collects/tests/mzscheme/benchmarks/shootout/k-nucleotide.ss
@@ -1,13 +1,5 @@
 ;;   The Computer Language Shootout
 ;;   http://shootout.alioth.debian.org/
-;;
-;; Based on the Ruby version:
-#|
-# http://shootout.alioth.debian.org
-#
-# contributed by jose fco. gonzalez
-# modified by Sokolov Yura
-|#
 
 (module k-nucleotide mzscheme
   (require (lib "list.ss")