diff --git a/lisp/ChangeLog b/lisp/ChangeLog
index fbf77c6258ebb88392e3a04bffd2f879b4ecbd22..432ca69ac6fdc3fdc4c29511407fe5323b9b09f5 100644
--- a/lisp/ChangeLog
+++ b/lisp/ChangeLog
@@ -1,3 +1,8 @@
+2015-02-04  Tassilo Horn  <tsdh@gnu.org>
+
+	* emacs-lisp/package.el (package-installed-p): Fix typo causing
+	void-variable error.
+
 2015-02-04  Artur Malabarba  <bruce.connor.am@gmail.com>
 
 	* emacs-lisp/package.el (package-delete): Remove package from
diff --git a/lisp/emacs-lisp/package.el b/lisp/emacs-lisp/package.el
index c635fcdf67140140aea3d320d6f243c7b082ef38..67cd44d675818b149a44dff1b9e898dc9c6a3141 100644
--- a/lisp/emacs-lisp/package.el
+++ b/lisp/emacs-lisp/package.el
@@ -1002,7 +1002,7 @@ should be a version list.
 If PACKAGE is a package-desc object, MIN-VERSION is ignored."
   (unless package--initialized (error "package.el is not yet initialized!"))
   (if (package-desc-p package)
-      (let ((dir (package-desc-dir pkg-desc)))
+      (let ((dir (package-desc-dir package)))
         (and (stringp dir)
              (file-exists-p dir)))
     (or