diff --git a/lib/simplecov-cobertura.rb b/lib/simplecov-cobertura.rb
index 40870c2..59a6cfe 100644
--- a/lib/simplecov-cobertura.rb
+++ b/lib/simplecov-cobertura.rb
@@ -49,6 +49,7 @@ def result_to_xml(result)
         end
 
         groups.map do |name, files|
+          next if files.empty?
           packages.add_element(package = REXML::Element.new('package'))
           set_package_attributes(package, name, files)