diff --git a/Library/Homebrew/cask/cmd/create.rb b/Library/Homebrew/cask/cmd/create.rb
index b9fcba49f3..43da210442 100644
--- a/Library/Homebrew/cask/cmd/create.rb
+++ b/Library/Homebrew/cask/cmd/create.rb
@@ -26,7 +26,7 @@ module Cask
             version ''
             sha256 ''
 
-            url 'https://'
+            url "https://"
             name ''
             homepage ''