diff --git a/samples/test/test.js b/samples/test/test.js
index 58363cd..6331a6c 100644
--- a/samples/test/test.js
+++ b/samples/test/test.js
@@ -16,7 +16,7 @@ const {assert} = require('chai');
 const {describe, it} = require('mocha');
 const cp = require('child_process');
 
-const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
+const execSync = (cmd) => cp.execSync(cmd, {encoding: 'utf-8'});
 
 describe('quickstart samples', () => {
   it('should run the quickstart', async () => {
@@ -24,4 +24,3 @@ describe('quickstart samples', () => {
     assert.include(stdout, 'Well hello there, nodestronaut!');
   });
 });
-
diff --git a/test/index.ts b/test/index.ts
index cf505e4..267b9f2 100644
--- a/test/index.ts
+++ b/test/index.ts
@@ -370,13 +370,15 @@ describe('callbackify', () => {
     const error = new Error('err');
     const callback = sinon.stub().throws(error);
     const originalRejection = process.listeners('unhandledRejection').pop();
-    if (originalRejection)
+    if (originalRejection) {
       process.removeListener('unhandledRejection', originalRejection!);
+    }
     process.once('unhandledRejection', err => {
       assert.strictEqual(error, err);
       assert.ok(callback.calledOnce);
-      if (originalRejection)
+      if (originalRejection) {
         process.listeners('unhandledRejection').push(originalRejection!);
+      }
     });
     func(callback);
   });