diff --git a/dns/transport/dhcp/dhcp.go b/dns/transport/dhcp/dhcp.go
index f55d547e0..d25b081f9 100644
--- a/dns/transport/dhcp/dhcp.go
+++ b/dns/transport/dhcp/dhcp.go
@@ -243,6 +243,7 @@ func (t *Transport) fetchServersResponse(iface *control.Interface, packetConn ne
 	defer buffer.Release()
 
 	for {
+		buffer.Reset()
 		_, _, err := buffer.ReadPacketFrom(packetConn)
 		if err != nil {
 			if errors.Is(err, io.ErrShortBuffer) {