diff --git a/core/config/schema/core.data_types.schema.yml b/core/config/schema/core.data_types.schema.yml
index 3edb8057..b7da337 100644
--- a/core/config/schema/core.data_types.schema.yml
+++ b/core/config/schema/core.data_types.schema.yml
@@ -468,7 +468,7 @@ field.value.string:
   label: 'Default value'
   mapping:
     value:
-      type: string
+      type: label
       label: 'Value'
 
 # Schema for the configuration of the  String (long) field type.