diff --git a/org/json/JSONObject.java b/org/json/JSONObject.java
index 63fd51e..ee5f968 100644
--- a/org/json/JSONObject.java
+++ b/org/json/JSONObject.java
@@ -187,8 +187,7 @@ public JSONObject(JSONTokener x) throws JSONException {
             case '}':
                 return;
             default:
-                x.back();
-                key = x.nextValue().toString();
+                key = x.nextSimpleValue(c).toString();
             }
 
             /*
diff --git a/org/json/JSONTokener.java b/org/json/JSONTokener.java
index 784ae45..c5d0715 100644
--- a/org/json/JSONTokener.java
+++ b/org/json/JSONTokener.java
@@ -363,12 +363,8 @@ public String nextTo(String delimiters) throws JSONException {
      */
     public Object nextValue() throws JSONException {
         char c = nextClean();
-        String s;
 
         switch (c) {
-            case '"':
-            case '\'':
-                return nextString(c);
             case '{':
                 back();
                 return new JSONObject(this);
@@ -377,6 +373,17 @@ public Object nextValue() throws JSONException {
                 back();
                 return new JSONArray(this);
         }
+        return nextSimpleValue(c);
+    }
+
+    Object nextSimpleValue(char c) throws JSONException {
+        String s;
+
+        switch (c) {
+            case '"':
+            case '\'':
+                return this.nextString(c);
+        }
 
         /*
          * Handle unquoted text. This could be the values true, false, or