1 files changed, 5 insertions, 5 deletions
diff --git a/packages/0x.js/src/utils/promisify.ts b/packages/0x.js/src/utils/promisify.ts
index 49024c0e9..c114cf32f 100644
--- a/packages/0x.js/src/utils/promisify.ts
+++ b/packages/0x.js/src/utils/promisify.ts
@@ -1,23 +1,23 @@
 import * as _ from 'lodash';
 
 /**
- * Transforms callback-based function -- func(arg1, arg2 .. argN, callback) -- into
- * an ES6-compatible Promise. Promisify provides a default callback of the form (error, result)
- * and rejects when `error` is not null. You can also supply settings object as the second argument.
+ * Transforms callback-based function -- func(arg1, arg2 .. argN, callback) -- into an ES6-compatible Promise.
+ * Promisify provides a default callback of the form (error, result) and rejects when `error` is not null. You can also
+ * supply thisArg object as the second argument which will be passed to `apply`.
  */
 export function promisify<T>(
     originalFn: (
         ...args: any[],
         // HACK: This can't be properly typed without variadic kinds https://github.com/Microsoft/TypeScript/issues/5453
     ) => void,
-    target?: any,
+    thisArg?: any,
 ): (...callArgs: any[]) => Promise<T> {
     const promisifiedFunction = async (...callArgs: any[]): Promise<T> => {
         return new Promise<T>((resolve, reject) => {
             const callback = (err: Error|null, data?: T) => {
                 _.isNull(err) ? resolve(data) : reject(err);
             };
-            originalFn.apply(target, [...callArgs, callback]);
+            originalFn.apply(thisArg, [...callArgs, callback]);
         });
     };
     return promisifiedFunction;