diff --git a/clients/client.go b/clients/client.go
index 96cd4a3..4a0793f 100644
--- a/clients/client.go
+++ b/clients/client.go
@@ -1065,9 +1065,9 @@ func (c *Client) EstimateGasWithdraw(ctx context.Context, msg WithdrawalCallMsg)
 		if errBridge != nil {
 			return 0, fmt.Errorf("failed to getBridgeContracts: %w", errBridge)
 		}
-		callMsg, err = msg.ToZkCallMsg(&contracts.L2SharedBridge)
+		callMsg, err = msg.ToCallMsg(&contracts.L2SharedBridge)
 	} else {
-		callMsg, err = msg.ToZkCallMsg(nil)
+		callMsg, err = msg.ToCallMsg(nil)
 		if err != nil {
 			return 0, err
 		}
diff --git a/clients/types.go b/clients/types.go
index a530e14..945a8fb 100644
--- a/clients/types.go
+++ b/clients/types.go
@@ -138,7 +138,7 @@ type WithdrawalCallMsg struct {
 	CustomSignature hexutil.Bytes
 }
 
-func (m *WithdrawalCallMsg) ToCallMsg(defaultL2Bridge *common.Address) (*ethereum.CallMsg, error) {
+func (m *WithdrawalCallMsg) ToL1CallMsg(defaultL2Bridge *common.Address) (*ethereum.CallMsg, error) {
 	if m.Token == utils.L2BaseTokenAddress {
 		ethTokenAbi, err := ethtoken.IEthTokenMetaData.GetAbi()
 		if err != nil {
@@ -186,8 +186,8 @@ func (m *WithdrawalCallMsg) ToCallMsg(defaultL2Bridge *common.Address) (*ethereu
 	}
 }
 
-func (m *WithdrawalCallMsg) ToZkCallMsg(defaultL2Bridge *common.Address) (*types.CallMsg, error) {
-	msg, err := m.ToCallMsg(defaultL2Bridge)
+func (m *WithdrawalCallMsg) ToCallMsg(defaultL2Bridge *common.Address) (*types.CallMsg, error) {
+	msg, err := m.ToL1CallMsg(defaultL2Bridge)
 	if err != nil {
 		return nil, err
 	}