diff --git a/staticlibs/device/com/android/net/module/util/netlink/RtNetlinkAddressMessage.java b/staticlibs/device/com/android/net/module/util/netlink/RtNetlinkAddressMessage.java
index 31c3a2e..2829b92 100644
--- a/staticlibs/device/com/android/net/module/util/netlink/RtNetlinkAddressMessage.java
+++ b/staticlibs/device/com/android/net/module/util/netlink/RtNetlinkAddressMessage.java
@@ -17,6 +17,7 @@
 package com.android.net.module.util.netlink;
 
 import static com.android.net.module.util.netlink.StructNlMsgHdr.NLM_F_ACK;
+import static com.android.net.module.util.netlink.StructNlMsgHdr.NLM_F_REPLACE;
 import static com.android.net.module.util.netlink.StructNlMsgHdr.NLM_F_REQUEST;
 
 import android.system.OsConstants;
@@ -168,7 +169,7 @@
 
         final StructNlMsgHdr nlmsghdr = new StructNlMsgHdr();
         nlmsghdr.nlmsg_type = NetlinkConstants.RTM_NEWADDR;
-        nlmsghdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_ACK;
+        nlmsghdr.nlmsg_flags = NLM_F_REQUEST | NLM_F_REPLACE | NLM_F_ACK;
         nlmsghdr.nlmsg_seq = seqNo;
 
         final RtNetlinkAddressMessage msg = new RtNetlinkAddressMessage(nlmsghdr);
diff --git a/staticlibs/tests/unit/src/com/android/net/module/util/netlink/RtNetlinkAddressMessageTest.java b/staticlibs/tests/unit/src/com/android/net/module/util/netlink/RtNetlinkAddressMessageTest.java
index f845eb4..99d96b5 100644
--- a/staticlibs/tests/unit/src/com/android/net/module/util/netlink/RtNetlinkAddressMessageTest.java
+++ b/staticlibs/tests/unit/src/com/android/net/module/util/netlink/RtNetlinkAddressMessageTest.java
@@ -144,7 +144,7 @@
                 // struct nlmsghdr
                 "48000000" +    // length = 72
                 "1400" +        // type = 20 (RTM_NEWADDR)
-                "0500" +        // flags = NLM_F_ACK | NLM_F_REQUEST
+                "0501" +        // flags = NLM_F_ACK | NLM_F_REQUEST | NLM_F_REPLACE
                 "01000000" +    // seqno = 1
                 "00000000" +    // pid = 0 (send to kernel)
                 // struct IfaddrMsg
@@ -195,7 +195,7 @@
                 // struct nlmsghdr
                 "48000000" +    // length = 72
                 "1400" +        // type = 20 (RTM_NEWADDR)
-                "0500" +        // flags = NLM_F_ACK | NLM_F_REQUEST
+                "0501" +        // flags = NLM_F_ACK | NLM_F_REQUEST | NLM_F_REPLACE
                 "01000000" +    // seqno = 1
                 "00000000" +    // pid = 0 (send to kernel)
                 // struct IfaddrMsg