diff --git a/modules/backend/models/brandsetting/fields.yaml b/modules/backend/models/brandsetting/fields.yaml
index 0dc9625387..ff7769febd 100644
--- a/modules/backend/models/brandsetting/fields.yaml
+++ b/modules/backend/models/brandsetting/fields.yaml
@@ -106,4 +106,4 @@ tabs:
             type: codeeditor
             tab: backend::lang.branding.styles
             size: giant
-            language: css
+            language: less