diff --git a/elemental/src/elemental/js/json/JsJsonString.java b/elemental/src/elemental/js/json/JsJsonString.java
index 3ed35bb..2db459b 100644
--- a/elemental/src/elemental/js/json/JsJsonString.java
+++ b/elemental/src/elemental/js/json/JsJsonString.java
@@ -37,7 +37,7 @@
    * MAGIC: String cast to object interface.
    */
   private static native JsJsonString createProd(String string) /*-{
-    return @elemental.js.json.JsJsonValue::box(Lelemental/json/JsonValue;)(value);
+    return @elemental.js.json.JsJsonValue::box(Lelemental/json/JsonValue;)(string);
   }-*/;
 
   protected JsJsonString() {