diff --git a/lisp/ob.el b/lisp/ob.el
index 33dbfef..32e2a54 100644
--- a/lisp/ob.el
+++ b/lisp/ob.el
@@ -1679,7 +1679,7 @@ of `org-babel-temporary-directory'."
 (defun org-babel-remove-temporary-directory ()
   "Remove `org-babel-temporary-directory' on Emacs shutdown."
   (when (boundp 'org-babel-temporary-directory)
-    (delete-directory org-babel-temporary-directory t)))
+    (delete-directory org-babel-temporary-directory)))
 
 (add-hook 'kill-emacs-hook 'org-babel-remove-temporary-directory)