1 files changed, 1 insertions, 1 deletions
diff --git a/src/fields/Doc.ts b/src/fields/Doc.ts
index 725221a66..fe044c035 100644
--- a/src/fields/Doc.ts
+++ b/src/fields/Doc.ts
@@ -102,7 +102,7 @@ export namespace Field {
     export function Copy(field: any) {
         return field instanceof ObjectField ? ObjectField.MakeCopy(field) : field;
     }
-    UndoManager.SetFieldPrinter(toJavascriptString);
+    UndoManager.SetFieldPrinter(toString);
 }
 export type FieldType = number | string | boolean | ObjectField | RefField;
 export type Opt<T> = T | undefined;