diff --git a/core/arbitrum_hooks.go b/core/arbitrum_hooks.go
index aaaa36e064..7b57ee694f 100644
--- a/core/arbitrum_hooks.go
+++ b/core/arbitrum_hooks.go
@@ -55,6 +55,7 @@ type NodeInterfaceBackendAPI interface {
 	ChainConfig() *params.ChainConfig
 	CurrentBlock() *types.Header
 	BlockByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Block, error)
+	HeaderByNumber(ctx context.Context, number rpc.BlockNumber) (*types.Header, error)
 	GetLogs(ctx context.Context, blockHash common.Hash, number uint64) ([][]*types.Log, error)
 	GetEVM(ctx context.Context, msg *Message, state *state.StateDB, header *types.Header, vmConfig *vm.Config, blockCtx *vm.BlockContext) (*vm.EVM, func() error)
 }