diff --git a/Formula/mozilla-addon-sdk.rb b/Formula/mozilla-addon-sdk.rb
index 42f2ed2d6d..ca40fecec6 100644
--- a/Formula/mozilla-addon-sdk.rb
+++ b/Formula/mozilla-addon-sdk.rb
@@ -1,7 +1,7 @@
 class MozillaAddonSdk < Formula
   desc "Create Firefox add-ons using JS, HTML, and CSS"
   homepage "https://developer.mozilla.org/en-US/Add-ons/SDK"
-  url "https://ftp.mozilla.org/pub/mozilla.org/labs/jetpack/addon-sdk-1.17.zip"
+  url "https://archive.mozilla.org/pub/mozilla.org/labs/jetpack/addon-sdk-1.17.zip"
   sha256 "16e29d92214a556c8422db156b541fb8c47addfcb3cd879e0a4ca879d6a31f65"
 
   bottle :unneeded