diff --git a/internal/ethapi/api.go b/internal/ethapi/api.go
index fcb6e5e3e..52653f125 100644
--- a/internal/ethapi/api.go
+++ b/internal/ethapi/api.go
@@ -1127,6 +1127,7 @@ func RPCMarshalHeader(head *types.Header) map[string]interface{} {
 		"timestamp":        hexutil.Uint64(head.Time),
 		"transactionsRoot": head.TxHash,
 		"receiptsRoot":     head.ReceiptHash,
+		"baseFee":          (*hexutil.Big)(head.BaseFee),
 	}
 }