Rakefile in oddb2xml-1.6.7 vs Rakefile in oddb2xml-1.6.8

@@ -23,9 +23,10 @@
   self.extra_deps << ['archive-tar-minitar']
   self.extra_deps << ['mechanize', '~> 2.5.1']
   self.extra_deps << ['nokogiri']
   self.extra_deps << ['savon', '>= 2.0']
   self.extra_deps << ['spreadsheet']
+  self.extra_deps << ['rubyXL']
 
   # gem.add_development_dependency
   self.extra_dev_deps << ['rspec']
   self.extra_dev_deps << ['webmock']