--- a/cask.el
+++ b/cask.el
@@ -345,9 +345,7 @@ Evaluate BODY in the package context of BUNDLE.  Then restore package context."
             (package-load-list
              (eval (car (get 'package-load-list 'standard-value))))
             (package-user-dir (cask-elpa-path ,bundle))
-	    (,@(if (special-variable-p 'package-gnupghome-dir)
-		   (cons 'package-gnupghome-dir (list (expand-file-name "gnupg" package-user-dir)))
-		 (list '_package-gnupghome-dir))))
+	    (package-gnupghome-dir (expand-file-name "gnupg" package-user-dir)))
        (cask--use-environment ,bundle ,refresh ,no-activate)
        ;; following will evaluate keys e.g., `:activate t` as separate s-exprs
        ;; which ought to be no-ops