diff --git a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/transaction.ex b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/transaction.ex
index 72aeca20fc..666098a5ce 100644
--- a/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/transaction.ex
+++ b/apps/ethereum_jsonrpc/lib/ethereum_jsonrpc/transaction.ex
@@ -257,8 +257,10 @@ defmodule EthereumJSONRPC.Transaction do
   # double check that no new keys are being missed by requiring explicit match for passthrough
   # `t:EthereumJSONRPC.address/0` and `t:EthereumJSONRPC.hash/0` pass through as `Explorer.Chain` can verify correct
   # hash format
+  #
+  # "txType": to avoid FunctionClauseError when indexing Wanchain
   defp entry_to_elixir({key, value})
-       when key in ~w(blockHash condition creates from hash input jsonrpc publicKey raw to),
+       when key in ~w(blockHash condition creates from hash input jsonrpc publicKey raw to txType),
        do: {key, value}
 
   defp entry_to_elixir({key, quantity}) when key in ~w(gas gasPrice nonce r s standardV v value) and quantity != nil do