diff --git a/lisp/emacs-lisp/package-vc.el b/lisp/emacs-lisp/package-vc.el
index 726e21ee6d..70fb6ac399 100644
--- a/lisp/emacs-lisp/package-vc.el
+++ b/lisp/emacs-lisp/package-vc.el
@@ -534,7 +534,7 @@ package-vc--read-package-name
                            (and-let* ((extras (package-desc-extras (cadr pkg)))
                                       (url (alist-get :url extras))
                                       ((package-vc--guess-backend url)))))))
-                   nil (not allow-url)))
+                   (not allow-url)))
 
 (defun package-vc--read-package-desc (prompt &optional installed)
   "Query the user for a source package and return a description with PROMPT.