--- a/toolkit/components/extensions/test/xpcshell/test_ext_manifest_minimum_chrome_version.js
+++ b/toolkit/components/extensions/test/xpcshell/test_ext_manifest_minimum_chrome_version.js
@@ -1,13 +1,13 @@
 /* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
 /* vim: set sts=2 sw=2 et tw=80: */
 "use strict";
 
 
 add_task(function* test_manifest_minimum_chrome_version() {
   let normalized = yield ExtensionTestUtils.normalizeManifest({
-  	"minimum_chrome_version":"42",
+    "minimum_chrome_version": "42",
   });
 
   equal(normalized.error, undefined, "Should not have an error");
   equal(normalized.errors.length, 0, "Should not have warnings");
 });