1 files changed, 1 insertions, 0 deletions
diff --git a/Gemfile b/Gemfile
index ef9f613955..0c65d74669 100644
--- a/Gemfile
+++ b/Gemfile
@@ -11,6 +11,7 @@ end
 gem "coffee-script"
 gem "sass"
 gem "uglifier", ">= 1.0.0"
+gem "w3c_validators"
 
 gem "rake",  ">= 0.8.7"
 gem "mocha", ">= 0.9.8"