diff --git a/core/modules/ckeditor/config/schema/ckeditor.schema.yml b/core/modules/ckeditor/config/schema/ckeditor.schema.yml
index 6bafb0de06..fcababfa0f 100644
--- a/core/modules/ckeditor/config/schema/ckeditor.schema.yml
+++ b/core/modules/ckeditor/config/schema/ckeditor.schema.yml
@@ -48,5 +48,5 @@ ckeditor.plugin.stylescombo:
   label: 'Styles dropdown'
   mapping:
     styles:
-      type: string
+      type: label
       label: 'List of styles'