diff --git a/lib/bootstrap-sass.rb b/lib/bootstrap-sass.rb
index 5b75a44f72..38d1c8835e 100644
--- a/lib/bootstrap-sass.rb
+++ b/lib/bootstrap-sass.rb
@@ -1,3 +1,5 @@
+require 'sass-rails'
+
 module Bootstrap
   module Rails
     class Engine < ::Rails::Engine