diff --git a/Rakefile b/Rakefile
index 72ce9dd5..f22649d3 100644
--- a/Rakefile
+++ b/Rakefile
@@ -113,7 +113,7 @@ task(:rubocop) do
   if RUBY_VERSION !~ /1.8/
     require 'rubocop'
     cli = RuboCop::CLI.new
-    cli.run(%w(-D -f s))
+    exit cli.run(%w(-D -f s))
   else
     puts "Rubocop is disabled in ruby 1.8"
   end