diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index e1b494a6..48b567c7 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -2650,8 +2650,8 @@ STON:
   group: Smalltalk
   extensions:
   - .ston
-  tm_scope: source.json
-  ace_mode: lisp
+  tm_scope: source.smalltalk
+  ace_mode: text
 
 Sage:
   type: programming