diff --git a/staticlibs/device/com/android/net/module/util/netlink/NetlinkConstants.java b/staticlibs/device/com/android/net/module/util/netlink/NetlinkConstants.java
index 27e1a32..1896de6 100644
--- a/staticlibs/device/com/android/net/module/util/netlink/NetlinkConstants.java
+++ b/staticlibs/device/com/android/net/module/util/netlink/NetlinkConstants.java
@@ -210,6 +210,7 @@
             case RTM_NEWRULE: return "RTM_NEWRULE";
             case RTM_DELRULE: return "RTM_DELRULE";
             case RTM_GETRULE: return "RTM_GETRULE";
+            case RTM_NEWPREFIX: return "RTM_NEWPREFIX";
             case RTM_NEWNDUSEROPT: return "RTM_NEWNDUSEROPT";
             default: return "unknown RTM type: " + String.valueOf(nlmType);
         }
diff --git a/staticlibs/tests/unit/src/com/android/net/module/util/netlink/NetlinkConstantsTest.java b/staticlibs/tests/unit/src/com/android/net/module/util/netlink/NetlinkConstantsTest.java
index 143e4d4..e42c552 100644
--- a/staticlibs/tests/unit/src/com/android/net/module/util/netlink/NetlinkConstantsTest.java
+++ b/staticlibs/tests/unit/src/com/android/net/module/util/netlink/NetlinkConstantsTest.java
@@ -46,6 +46,7 @@
 import static com.android.net.module.util.netlink.NetlinkConstants.RTM_NEWADDR;
 import static com.android.net.module.util.netlink.NetlinkConstants.RTM_NEWLINK;
 import static com.android.net.module.util.netlink.NetlinkConstants.RTM_NEWNDUSEROPT;
+import static com.android.net.module.util.netlink.NetlinkConstants.RTM_NEWPREFIX;
 import static com.android.net.module.util.netlink.NetlinkConstants.RTM_NEWNEIGH;
 import static com.android.net.module.util.netlink.NetlinkConstants.RTM_NEWROUTE;
 import static com.android.net.module.util.netlink.NetlinkConstants.RTM_NEWRULE;
@@ -89,6 +90,7 @@
         assertEquals("RTM_NEWRULE", stringForNlMsgType(RTM_NEWRULE, NETLINK_ROUTE));
         assertEquals("RTM_DELRULE", stringForNlMsgType(RTM_DELRULE, NETLINK_ROUTE));
         assertEquals("RTM_GETRULE", stringForNlMsgType(RTM_GETRULE, NETLINK_ROUTE));
+        assertEquals("RTM_NEWPREFIX", stringForNlMsgType(RTM_NEWPREFIX, NETLINK_ROUTE));
         assertEquals("RTM_NEWNDUSEROPT", stringForNlMsgType(RTM_NEWNDUSEROPT, NETLINK_ROUTE));
 
         assertEquals("SOCK_DIAG_BY_FAMILY",