diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 36b61047..9562efb3 100755
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -4262,8 +4262,7 @@ TypeScript:
   - ".tsx"
   tm_scope: source.ts
   ace_mode: typescript
-  codemirror_mode: javascript
- codemirror_mode: typescript
+  codemirror_mode: typescript
   codemirror_mime_mode: text/x-typescript
   language_id: 378
 Unified Parallel C: