1 files changed, 6 insertions, 2 deletions
diff --git a/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts b/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts
index 65f1cda24..ede0460bd 100644
--- a/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/ether_token_wrapper.ts
@@ -31,7 +31,9 @@ export class EtherTokenWrapper extends ContractWrapper {
      * @param   txOpts           Transaction parameters.
      * @return Transaction hash.
      */
-    public async depositAsync(amountInWei: BigNumber, depositor: string, txOpts: TransactionOpts): Promise<string> {
+    public async depositAsync(
+        amountInWei: BigNumber, depositor: string, txOpts: TransactionOpts = {},
+    ): Promise<string> {
         assert.isValidBaseUnitAmount('amountInWei', amountInWei);
         await assert.isSenderAddressAsync('depositor', depositor, this._web3Wrapper);
 
@@ -55,7 +57,9 @@ export class EtherTokenWrapper extends ContractWrapper {
      * @param   txOpts       Transaction parameters.
      * @return Transaction hash.
      */
-    public async withdrawAsync(amountInWei: BigNumber, withdrawer: string, txOpts: TransactionOpts): Promise<string> {
+    public async withdrawAsync(
+        amountInWei: BigNumber, withdrawer: string, txOpts: TransactionOpts = {},
+    ): Promise<string> {
         assert.isValidBaseUnitAmount('amountInWei', amountInWei);
         await assert.isSenderAddressAsync('withdrawer', withdrawer, this._web3Wrapper);