diff --git a/core/src/com/cloud/serializer/SerializerHelper.java b/core/src/com/cloud/serializer/SerializerHelper.java
index 60a978d9aab5..5ce05ab19493 100644
--- a/core/src/com/cloud/serializer/SerializerHelper.java
+++ b/core/src/com/cloud/serializer/SerializerHelper.java
@@ -39,7 +39,7 @@
  */
 public class SerializerHelper {
     public static final Logger s_logger = Logger.getLogger(SerializerHelper.class.getName());
-    public static String token = "/";
+    public static final String token = "/";
 
     public static String toSerializedStringOld(Object result) {
         if (result != null) {
diff --git a/utils/src/com/cloud/utils/nio/Link.java b/utils/src/com/cloud/utils/nio/Link.java
index ddfd474dfff6..6d6306a53b81 100644
--- a/utils/src/com/cloud/utils/nio/Link.java
+++ b/utils/src/com/cloud/utils/nio/Link.java
@@ -66,7 +66,7 @@ public class Link {
     private boolean _gotFollowingPacket;
 
     private SSLEngine _sslEngine;
-    public static String keystoreFile = "/cloudmanagementserver.keystore";
+    public static final String keystoreFile = "/cloudmanagementserver.keystore";
 
     public Link(InetSocketAddress addr, NioConnection connection) {
         _addr = addr;