diff --git a/src/ca/weblite/codename1/json/JSONObject.java b/src/ca/weblite/codename1/json/JSONObject.java
index df9f48a..87a2713 100644
--- a/src/ca/weblite/codename1/json/JSONObject.java
+++ b/src/ca/weblite/codename1/json/JSONObject.java
@@ -32,6 +32,7 @@ of this software and associated documentation files (the "Software"), to deal
 import java.util.List;
 import java.util.Map;
 
+
 /**
  * A JSONObject is an unordered collection of name/value pairs. Its
  * external form is a string wrapped in curly braces with colons between the
@@ -1191,6 +1192,9 @@ static String valueToString(Object value) throws JSONException {
         if (value == null ) {
             return "null";
         }
+        if (value instanceof Null) {
+            return value.toString();
+        }
         if (value instanceof JSONString) {
         	Object o;
         	try {