diff --git a/Library/Homebrew/test/cask/cmd/create_spec.rb b/Library/Homebrew/test/cask/cmd/create_spec.rb
index 9a26346bb5..89fc13e813 100644
--- a/Library/Homebrew/test/cask/cmd/create_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/create_spec.rb
@@ -33,7 +33,7 @@ describe Cask::Cmd::Create, :cask do
         version ''
         sha256 ''
 
-        url 'https://'
+        url "https://"
         name ''
         homepage ''