diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 319c445e..7d0b4ac3 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -3361,7 +3361,7 @@ Stan:
   extensions:
   - .stan
   ace_mode: text
-  tm_scope: none
+  tm_scope: source.stan
 
 Standard ML:
   type: programming