diff --git a/eth/fetcher/tx_fetcher.go b/eth/fetcher/tx_fetcher.go
index 6e916747da..ba48c6cc8d 100644
--- a/eth/fetcher/tx_fetcher.go
+++ b/eth/fetcher/tx_fetcher.go
@@ -180,11 +180,11 @@ type TxFetcher struct {
 	alternates map[common.Hash]map[string]struct{} // In-flight transaction alternate origins if retrieval fails
 
 	// Callbacks
-	validateMeta func(common.Hash, byte) error      // Validate a tx metadata based on the local txpool
-	addTxs       func([]*types.Transaction) []error          // Insert a batch of transactions into local txpool
-	fetchTxs     func(string, []common.Hash) error           // Retrieves a set of txs from a remote peer
-	dropPeer     func(string)                                // Drops a peer in case of announcement violation
-	onAccepted   func(peer string, hashes []common.Hash)     // Optional: notified with accepted tx hashes per peer
+	validateMeta func(common.Hash, byte) error           // Validate a tx metadata based on the local txpool
+	addTxs       func([]*types.Transaction) []error      // Insert a batch of transactions into local txpool
+	fetchTxs     func(string, []common.Hash) error       // Retrieves a set of txs from a remote peer
+	dropPeer     func(string)                            // Drops a peer in case of announcement violation
+	onAccepted   func(peer string, hashes []common.Hash) // Optional: notified with accepted tx hashes per peer
 
 	step     chan struct{}    // Notification channel when the fetcher loop iterates
 	clock    mclock.Clock     // Monotonic clock or simulated clock for tests
diff --git a/eth/handler.go b/eth/handler.go
index 69469fddd0..d809053533 100644
--- a/eth/handler.go
+++ b/eth/handler.go
@@ -36,9 +36,9 @@ import (
 	"github.com/ethereum/go-ethereum/eth/downloader"
 	"github.com/ethereum/go-ethereum/eth/ethconfig"
 	"github.com/ethereum/go-ethereum/eth/fetcher"
-	"github.com/ethereum/go-ethereum/eth/txtracker"
 	"github.com/ethereum/go-ethereum/eth/protocols/eth"
 	"github.com/ethereum/go-ethereum/eth/protocols/snap"
+	"github.com/ethereum/go-ethereum/eth/txtracker"
 	"github.com/ethereum/go-ethereum/ethdb"
 	"github.com/ethereum/go-ethereum/event"
 	"github.com/ethereum/go-ethereum/log"
diff --git a/tests/fuzzers/txfetcher/txfetcher_fuzzer.go b/tests/fuzzers/txfetcher/txfetcher_fuzzer.go
index bcceaff383..69674d0e62 100644
--- a/tests/fuzzers/txfetcher/txfetcher_fuzzer.go
+++ b/tests/fuzzers/txfetcher/txfetcher_fuzzer.go
@@ -84,7 +84,7 @@ func fuzz(input []byte) int {
 			return make([]error, len(txs))
 		},
 		func(string, []common.Hash) error { return nil },
-		nil,
+		nil, nil,
 		clock,
 		func() time.Time {
 			nanoTime := int64(clock.Now())