diff --git a/ethclient/ethclient.go b/ethclient/ethclient.go
index 9d0e0d5b5..fc2ab56f8 100644
--- a/ethclient/ethclient.go
+++ b/ethclient/ethclient.go
@@ -735,6 +735,7 @@ 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)
diff --git a/ethclient/gethclient/gethclient.go b/ethclient/gethclient/gethclient.go
index 39ac4ff20..48a874552 100644
--- a/ethclient/gethclient/gethclient.go
+++ b/ethclient/gethclient/gethclient.go
@@ -226,6 +226,7 @@ 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)