diff --git a/src/excel2csv.rb b/src/excel2csv.rb
index 9722ad2..a824cd0 100644
--- a/src/excel2csv.rb
+++ b/src/excel2csv.rb
@@ -2,6 +2,7 @@
 #!/usr/bin/env ruby
 
 require 'rubygems'
+require 'iconv'
 require 'roo'