diff --git a/source/data/transformer.mjs b/source/data/transformer.mjs
index ca0df97e9cc56785119bdfe400138f737d0080e8..22ec307c1beb73c44bf0c272cecd167161cfb9c3 100644
--- a/source/data/transformer.mjs
+++ b/source/data/transformer.mjs
@@ -675,7 +675,7 @@ function transform(value) {
 			}
 
 			try {
-				locale = getLocaleOfDocument();
+				locale = getLocaleOfDocument().toString();
 				
 				console.log(locale, options, date,"!!!!");