diff --git a/src/updater.js b/src/updater.js
index 680866565..a0c3c8c6c 100644
--- a/src/updater.js
+++ b/src/updater.js
@@ -99,9 +99,10 @@ function verifyUpdateInfo(versionsFile, updateInfo, callback) {
     assert.strictEqual(typeof updateInfo, 'object');
     assert.strictEqual(typeof callback, 'function');
 
-    var releases = safe.JSON.parse(safe.fs.readFileSync(versionsFile, 'utf8')) || { };
-    if (!releases[constants.VERSION] || !releases[constants.VERSION].next) return callback(new BoxError(BoxError.EXTERNAL_ERROR, 'No version info'));
-    var nextVersion = releases[constants.VERSION].next;
+    const releases = safe.JSON.parse(safe.fs.readFileSync(versionsFile, 'utf8')) || {};
+    if (!releases[constants.VERSION]) return callback(new BoxError(BoxError.EXTERNAL_ERROR, `No version info for ${constants.VERSION}`));
+    if (!releases[constants.VERSION].next) return callback(new BoxError(BoxError.EXTERNAL_ERROR, `No next version info for ${constants.VERSION}`));
+    const nextVersion = releases[constants.VERSION].next;
     if (typeof releases[nextVersion] !== 'object' || !releases[nextVersion]) return callback(new BoxError(BoxError.EXTERNAL_ERROR, 'No next version info'));
     if (releases[nextVersion].sourceTarballUrl !== updateInfo.sourceTarballUrl) return callback(new BoxError(BoxError.EXTERNAL_ERROR, 'Version info mismatch'));