diff --git a/browser/base/content/test/general/browser_selectpopup.js b/browser/base/content/test/general/browser_selectpopup.js
index 94e11e960559..984565099abe 100644
--- a/browser/base/content/test/general/browser_selectpopup.js
+++ b/browser/base/content/test/general/browser_selectpopup.js
@@ -6,7 +6,7 @@
// to implement the dropdown list.
const PAGECONTENT =
- "