diff --git a/core/filtermaps/chain_view.go b/core/filtermaps/chain_view.go
index 35c5ed22a5..3ea39fb126 100644
--- a/core/filtermaps/chain_view.go
+++ b/core/filtermaps/chain_view.go
@@ -17,8 +17,6 @@
 package filtermaps
 
 import (
-	"sync"
-
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/core/types"
 	"github.com/ethereum/go-ethereum/log"
@@ -42,7 +40,6 @@ type blockchain interface {
 // of the underlying blockchain, it should only possess the block headers
 // and receipts up until the expected chain view head.
 type ChainView struct {
-	lock       sync.Mutex
 	chain      blockchain
 	headNumber uint64
 	hashes     []common.Hash // block hashes starting backwards from headNumber until first canonical hash