diff --git a/p2p/discover/portal_protocol.go b/p2p/discover/portal_protocol.go
index 017c27ae77..bb1f2272d0 100644
--- a/p2p/discover/portal_protocol.go
+++ b/p2p/discover/portal_protocol.go
@@ -9,6 +9,7 @@ import (
 	"encoding/binary"
 	"errors"
 	"fmt"
+	"github.com/ethereum/go-ethereum/common/hexutil"
 	"io"
 	"math/big"
 	"math/rand"