1 files changed, 1 insertions, 1 deletions
diff --git a/merge_files b/merge_files
index 051ad6d..0b4941e 100755
--- a/merge_files
+++ b/merge_files
@@ -1,6 +1,6 @@
 #!/usr/bin/env ruby
 
-require 'nlp_ruby'
+require 'zipf'
 
 
 def usage