diff --git a/Rakefile b/Rakefile
index 3adf8337..4c2b2ed0 100644
--- a/Rakefile
+++ b/Rakefile
@@ -1,5 +1,6 @@
 require 'puppetlabs_spec_helper/rake_tasks'
 require 'puppet-lint/tasks/puppet-lint'
 
+PuppetLint.configuration.fail_on_warnings = true
 PuppetLint.configuration.send('disable_80chars')
 PuppetLint.configuration.send('disable_class_parameter_defaults')