diff --git a/3.1-User-Scripts.md b/3.1-User-Scripts.md
index 06abb01..505725c 100644
--- a/3.1-User-Scripts.md
+++ b/3.1-User-Scripts.md
@@ -25,7 +25,7 @@ Object.defineProperty(history,'length',{
 });
 ```
 
-### Conceal windows.name
+### Conceal window.name
 See [bugzilla 444222](https://bugzilla.mozilla.org/show_bug.cgi?id=444222).
 You can test it at [JoDonym](http://ip-check.info/?lang=en)