diff --git a/eth/api.go b/eth/api.go
index b2260a32ade1..1892746602cf 100644
--- a/eth/api.go
+++ b/eth/api.go
@@ -361,7 +361,7 @@ func (api *PrivateDebugAPI) GetBadBlocks(ctx context.Context) ([]*BadBlockArgs,
 const AccountRangeMaxResults = 256
 
 // AccountRange enumerates all accounts in the given block and start point in paging request
-func (api *PublicDebugAPI) AccountRange(blockNrOrHash rpc.BlockNumberOrHash, start []byte, maxResults int, nocode, nostorage, incompletes bool) (state.IteratorDump, error) {
+func (api *PublicDebugAPI) AccountRange(blockNrOrHash rpc.BlockNumberOrHash, start hexutil.Bytes, maxResults int, nocode, nostorage, incompletes bool) (state.IteratorDump, error) {
 	var stateDb *state.StateDB
 	var err error