1 files changed, 1 insertions, 1 deletions
diff --git a/src/contract_wrappers/exchange_wrapper.ts b/src/contract_wrappers/exchange_wrapper.ts
index b8e34b9e8..982a8c0c1 100644
--- a/src/contract_wrappers/exchange_wrapper.ts
+++ b/src/contract_wrappers/exchange_wrapper.ts
@@ -176,7 +176,7 @@ export class ExchangeWrapper extends ContractWrapper {
             SchemaValidator.convertToJSONSchemaCompatibleObject(order as object),
             signedOrderSchema);
         assert.isBigNumber('cancelAmount', cancelAmount);
-        await assert.isSenderAddressAvailableAsync(this.web3Wrapper, order.maker);
+        await assert.isSenderAddressAvailableAsync(this.web3Wrapper, 'order.maker', order.maker);
 
         const exchangeInstance = await this.getExchangeContractAsync();
         await this.validateCancelOrderAndThrowIfInvalidAsync(order, cancelAmount);