diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index 36c04f14..5a1c0a2d 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -531,6 +531,7 @@ Cool:
   type: programming
   extensions:
   - .cl
+  tm_scope: none
 
 Coq:
   type: programming