diff --git a/api/js/etemplate/et2_widget_entry.ts b/api/js/etemplate/et2_widget_entry.ts
index 4883e889a2..1f247b40b4 100644
--- a/api/js/etemplate/et2_widget_entry.ts
+++ b/api/js/etemplate/et2_widget_entry.ts
@@ -78,7 +78,7 @@ class et2_entry extends et2_valueWidget
 
 	public static readonly legacyOptions : string[] = ["field","compare","alternate_fields"];
 
-	static readonly prefix: '~';
+	public static readonly prefix = '~';
 	protected widget = null;
 
 	constructor(_parent, _attrs? : WidgetConfig, _child? : object)