diff --git a/Casks/istat-menus4.rb b/Casks/istat-menus4.rb
index 10016aaf7..246c3aa40 100644
--- a/Casks/istat-menus4.rb
+++ b/Casks/istat-menus4.rb
@@ -3,7 +3,7 @@ cask :v1 => 'istat-menus4' do
   sha256 '4e6873b24d18578e359b9363f02b9c98bdeda999afab1aaa8802af254ecb35b6'
 
   # amazonaws.com is the official download host per the vendor homepage
-  url "https://s3.amazonaws.com/bjango/files/istatmenus4/istatmenus#{version}.zip
+  url "https://s3.amazonaws.com/bjango/files/istatmenus4/istatmenus#{version}.zip"
   name 'iStats Menus'
   homepage 'http://bjango.com/mac/istatmenus/'
   license :unknown    # todo: change license and remove this comment; ':unknown' is a machine-generated placeholder