diff --git a/src/share/classes/java/util/TreeMap.java b/src/share/classes/java/util/TreeMap.java
index 6a3ecc00bd0eb255bd24d1fea024de81f32c8aea..e014fb5ba8e6ae2a9fdf6a4796282d37595649fa 100644
--- a/src/share/classes/java/util/TreeMap.java
+++ b/src/share/classes/java/util/TreeMap.java
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 1997, 2014, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
@@ -1338,6 +1338,7 @@ public class TreeMap<K,V>
      */
     abstract static class NavigableSubMap<K,V> extends AbstractMap<K,V>
         implements NavigableMap<K,V>, java.io.Serializable {
+        private static final long serialVersionUID = -2102997345730753016L;
         /**
          * The backing map.
          */