diff --git a/services/net/java/android/net/dhcp/DhcpPacket.java b/services/net/java/android/net/dhcp/DhcpPacket.java
index ef4bc024c1533..96c8e9f0f549a 100644
--- a/services/net/java/android/net/dhcp/DhcpPacket.java
+++ b/services/net/java/android/net/dhcp/DhcpPacket.java
@@ -7,6 +7,7 @@ import android.net.metrics.DhcpErrorEvent;
 import android.os.Build;
 import android.os.SystemProperties;
 import android.system.OsConstants;
+import android.text.TextUtils;
 import com.android.internal.annotations.VisibleForTesting;
 
 import java.io.UnsupportedEncodingException;
@@ -629,7 +630,8 @@ abstract class DhcpPacket {
     protected void addCommonClientTlvs(ByteBuffer buf) {
         addTlv(buf, DHCP_MAX_MESSAGE_SIZE, (short) MAX_LENGTH);
         addTlv(buf, DHCP_VENDOR_CLASS_ID, getVendorId());
-        addTlv(buf, DHCP_HOST_NAME, getHostname());
+        final String hn = getHostname();
+        if (!TextUtils.isEmpty(hn)) addTlv(buf, DHCP_HOST_NAME, hn);
     }
 
     /**