diff --git a/spec/async-spec-helpers.js b/spec/async-spec-helpers.js
index e3cf26fa7..56550cd9f 100644
--- a/spec/async-spec-helpers.js
+++ b/spec/async-spec-helpers.js
@@ -34,7 +34,7 @@ export function afterEach (fn) {
   }
 })
 
-export async function conditionPromise (condition)  {
+export async function conditionPromise (condition) {
   const startTime = Date.now()
 
   while (true) {
@@ -45,7 +45,7 @@ export async function conditionPromise (condition)  {
     }
 
     if (Date.now() - startTime > 5000) {
-      throw new Error("Timed out waiting on condition")
+      throw new Error('Timed out waiting on condition')
     }
   }
 }
@@ -96,7 +96,7 @@ export function promisify (original) {
 
 export function promisifySome (obj, fnNames) {
   const result = {}
-  for (fnName of fnNames) {
+  for (const fnName of fnNames) {
     result[fnName] = promisify(obj[fnName])
   }
   return result