diff --git a/languages/ruby.el b/languages/ruby.el
index 7b9071f..3250f74 100644
--- a/languages/ruby.el
+++ b/languages/ruby.el
@@ -7,6 +7,7 @@
 (add-to-list 'auto-mode-alist '("\\.ru\\'" . ruby-mode))
 (add-to-list 'auto-mode-alist '("\\.rake\\'" . ruby-mode))
 (add-to-list 'auto-mode-alist '("\\.gemspec\\'" . ruby-mode))
+(add-to-list 'auto-mode-alist '("\\.rabl\\'" . ruby-mode))
 
 (add-hook 'ruby-mode-hook
           (lambda ()