1 files changed, 1 insertions, 1 deletions
diff --git a/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts b/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts
index 637c27361..1ff9ace3b 100644
--- a/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts
+++ b/packages/0x.js/src/contract_wrappers/exchange_wrapper.ts
@@ -827,7 +827,7 @@ export class ExchangeWrapper extends ContractWrapper {
         );
         return contractAddress;
     }
-    private async _invalidateContractInstancesAsync(): Promise<void> {
+    private _invalidateContractInstances(): void {
         this.unsubscribeAll();
         delete this._exchangeContractIfExists;
     }