diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index d65fbc54..ffd6a00e 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -219,6 +219,12 @@ CSS:
   extensions:
   - .css
 
+Ceylon:
+  type: programming
+  primary_extension: .ceylon
+  extensions:
+  - .ceylon
+
 ChucK:
   lexer: Java
   extensions: