diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 6983373b..9aa5da67 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -171,6 +171,8 @@ Clojure:
 
 CoffeeScript:
   type: programming
+  aliases:
+  - coffee
   extensions:
   - .coffee
   filenames: