diff --git a/lib/linguist/languages.yml b/lib/linguist/languages.yml
index a7c4a913..8069a221 100644
--- a/lib/linguist/languages.yml
+++ b/lib/linguist/languages.yml
@@ -578,6 +578,7 @@ Cool:
   extensions:
   - .cl
   tm_scope: source.cool
+  ace_mode: none
 
 Coq:
   type: programming
@@ -1076,6 +1077,7 @@ Gradle:
   extensions:
   - .gradle
   tm_scope: source.groovy.gradle
+  ace_mode: none
 
 Grammatical Framework:
   type: programming
@@ -2044,6 +2046,7 @@ Oz:
   extensions:
   - .oz
   tm_scope: source.oz
+  ace_mode: none
 
 PAWN:
   type: programming