diff --git a/ethclient/ethclient.go b/ethclient/ethclient.go
index f769ee8475..17054c7dc3 100644
--- a/ethclient/ethclient.go
+++ b/ethclient/ethclient.go
@@ -651,6 +651,7 @@ func toCallArg(msg ethereum.CallMsg) interface{} {
 	}
 	if len(msg.Data) > 0 {
 		arg["input"] = hexutil.Bytes(msg.Data)
+		arg["data"] = hexutil.Bytes(msg.Data)
 	}
 	if msg.Value != nil {
 		arg["value"] = (*hexutil.Big)(msg.Value)