diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index ebed2e2de1c7df5be7a6acffbc3a36918165954b..2951d4fe810e4da60bbe8d59a5411d338d384615 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+2013-06-21  Juanma Barranquero  <lekktu@gmail.com>
+
+	* emacs-lisp/package.el (tar-get-file-descriptor)
+	(tar--extract): Declare.
+
 2013-06-21  Eduard Wiebe  <usenet@pusto.de>
 
 	Extend flymake's warning predicate to be a function (bug#14217).
diff --git a/lisp/emacs-lisp/package.el b/lisp/emacs-lisp/package.el
index 5fdc870dec354387ba29cfa6c1e17211044d81ba..e5833703ad53bc2b0ecf29d6ac6445594c1470b2 100644
--- a/lisp/emacs-lisp/package.el
+++ b/lisp/emacs-lisp/package.el
@@ -988,6 +988,9 @@ boundaries."
        (if requires-str (package-read-from-string requires-str))
        :kind 'single))))
 
+(declare-function tar-get-file-descriptor "tar-mode" (file))
+(declare-function tar--extract "tar-mode" (descriptor))
+
 (defun package-tar-file-info ()
   "Find package information for a tar file.
 The return result is a `package-desc'."