diff --git a/core/config/schema/core.data_types.schema.yml b/core/config/schema/core.data_types.schema.yml
index 3edb8057..0137e6e 100644
--- a/core/config/schema/core.data_types.schema.yml
+++ b/core/config/schema/core.data_types.schema.yml
@@ -593,10 +593,10 @@ field.field_settings.boolean:
   type: mapping
   mapping:
     on_label:
-      type: string
+      type: label
       label: 'On label'
     off_label:
-      type: string
+      type: label
       label: 'Off label'
 
 field.value.boolean: