diff --git a/ethclient/ethclient.go b/ethclient/ethclient.go
index 82b9ae3df..a21d8ff67 100644
--- a/ethclient/ethclient.go
+++ b/ethclient/ethclient.go
@@ -619,7 +619,7 @@ func toCallArg(msg ethereum.CallMsg) interface{} {
 		"to":   msg.To,
 	}
 	if len(msg.Data) > 0 {
-		arg["data"] = hexutil.Bytes(msg.Data)
+		arg["input"] = 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 c02961167..e2c0ef3ed 100644
--- a/ethclient/gethclient/gethclient.go
+++ b/ethclient/gethclient/gethclient.go
@@ -225,7 +225,7 @@ func toCallArg(msg ethereum.CallMsg) interface{} {
 		"to":   msg.To,
 	}
 	if len(msg.Data) > 0 {
-		arg["data"] = hexutil.Bytes(msg.Data)
+		arg["input"] = hexutil.Bytes(msg.Data)
 	}
 	if msg.Value != nil {
 		arg["value"] = (*hexutil.Big)(msg.Value)