2 files changed, 10 insertions, 0 deletions
diff --git a/src/0x.js.ts b/src/0x.js.ts
index 25b4af777..5a0d3033c 100644
--- a/src/0x.js.ts
+++ b/src/0x.js.ts
@@ -137,6 +137,13 @@ export class ZeroEx {
         this.tokenRegistry.invalidateContractInstance();
         this.token.invalidateContractInstances();
     }
+
+    /**
+     * Sets default account for sending transactions.
+     */
+    public setDefaultAccount(account: string): void {
+        this.web3Wrapper.setDefaultAccount(account);
+    }
     /**
      * Signs an orderHash and returns it's elliptic curve signature
      * This method currently supports TestRPC, Geth and Parity above and below V1.6.6
diff --git a/src/web3_wrapper.ts b/src/web3_wrapper.ts
index 79fd166ec..70e77dbe3 100644
--- a/src/web3_wrapper.ts
+++ b/src/web3_wrapper.ts
@@ -17,6 +17,9 @@ export class Web3Wrapper {
     public isAddress(address: string): boolean {
         return this.web3.isAddress(address);
     }
+    public setDefaultAccount(address: string): void {
+        this.web3.eth.defaultAccount = address;
+    }
     public async getSenderAddressIfExistsAsync(): Promise<string|undefined> {
         const defaultAccount = this.web3.eth.defaultAccount;
         if (!_.isUndefined(defaultAccount)) {