diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 6ec9d4fd..1ab3e28b 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -1473,6 +1473,7 @@ Org:
 
 Ox:
   type: programming
+  lex: oxl
   extensions:
   - .ox
   - .h