diff --git a/staticlibs/device/com/android/net/module/util/dhcp6/Dhcp6Packet.java b/staticlibs/device/com/android/net/module/util/dhcp6/Dhcp6Packet.java
index 7d20c6c157..3990dd3fcc 100644
--- a/staticlibs/device/com/android/net/module/util/dhcp6/Dhcp6Packet.java
+++ b/staticlibs/device/com/android/net/module/util/dhcp6/Dhcp6Packet.java
@@ -65,6 +65,8 @@ public class Dhcp6Packet {
     public static final byte DHCP6_MESSAGE_TYPE_INFORMATION_REQUEST = 11;
     public static final byte DHCP6_MESSAGE_TYPE_RELAY_FORW = 12;
     public static final byte DHCP6_MESSAGE_TYPE_RELAY_REPL = 13;
+    public static final byte DHCP6_MESSAGE_TYPE_ADDR_REG_INFORM = 36;
+    public static final byte DHCP6_MESSAGE_TYPE_ADDR_REG_REPLY = 37;
 
     /**
      * DHCPv6 Optional Type: Client Identifier.