diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 11eb29aa..6ec9d4fd 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -1471,6 +1471,14 @@ Org:
   extensions:
   - .org
 
+Ox:
+  type: programming
+  extensions:
+  - .ox
+  - .h
+  - .oxh
+  - .oxo
+
 Oxygene:
   type: programming
   lexer: Text only