diff --git a/spec/node-spec.js b/spec/node-spec.js
index d5313d7f92ef..c7a74efd6c70 100644
--- a/spec/node-spec.js
+++ b/spec/node-spec.js
@@ -1,5 +1,6 @@
 const assert = require('assert');
 const child_process = require('child_process');
+const fs = require('fs');
 const path = require('path');
 const os = require('os');
 const remote = require('electron').remote;