diff --git a/lisp/obsolete/pgg-def.el b/lisp/obsolete/pgg-def.el
index d1b78ccb30b..0d602fda617 100644
--- a/lisp/obsolete/pgg-def.el
+++ b/lisp/obsolete/pgg-def.el
@@ -7,6 +7,7 @@
 ;; Created: 1999/11/02
 ;; Keywords: PGP, OpenPGP, GnuPG
 ;; Package: pgg
+;; Obsolete-since: 24.1
 
 ;; This file is part of GNU Emacs.
 
diff --git a/lisp/obsolete/pgg-gpg.el b/lisp/obsolete/pgg-gpg.el
index 97b3b3e3d42..7e67790a4ce 100644
--- a/lisp/obsolete/pgg-gpg.el
+++ b/lisp/obsolete/pgg-gpg.el
@@ -9,6 +9,7 @@
 ;; Created: 1999/10/28
 ;; Keywords: PGP, OpenPGP, GnuPG
 ;; Package: pgg
+;; Obsolete-since: 24.1
 
 ;; This file is part of GNU Emacs.
 
diff --git a/lisp/obsolete/pgg-parse.el b/lisp/obsolete/pgg-parse.el
index 72f8729de77..640d0b3ce0f 100644
--- a/lisp/obsolete/pgg-parse.el
+++ b/lisp/obsolete/pgg-parse.el
@@ -7,6 +7,7 @@
 ;; Created: 1999/10/28
 ;; Keywords: PGP, OpenPGP, GnuPG
 ;; Package: pgg
+;; Obsolete-since: 24.1
 
 ;; This file is part of GNU Emacs.
 
diff --git a/lisp/obsolete/pgg-pgp.el b/lisp/obsolete/pgg-pgp.el
index dfa02d78353..9d1d8ef1c04 100644
--- a/lisp/obsolete/pgg-pgp.el
+++ b/lisp/obsolete/pgg-pgp.el
@@ -7,6 +7,7 @@
 ;; Created: 1999/11/02
 ;; Keywords: PGP, OpenPGP
 ;; Package: pgg
+;; Obsolete-since: 24.1
 
 ;; This file is part of GNU Emacs.
 
diff --git a/lisp/obsolete/pgg-pgp5.el b/lisp/obsolete/pgg-pgp5.el
index 49731190946..dd662c21d25 100644
--- a/lisp/obsolete/pgg-pgp5.el
+++ b/lisp/obsolete/pgg-pgp5.el
@@ -7,6 +7,7 @@
 ;; Created: 1999/11/02
 ;; Keywords: PGP, OpenPGP
 ;; Package: pgg
+;; Obsolete-since: 24.1
 
 ;; This file is part of GNU Emacs.
 
diff --git a/lisp/obsolete/pgg.el b/lisp/obsolete/pgg.el
index f851903a3e1..b63dd46c98b 100644
--- a/lisp/obsolete/pgg.el
+++ b/lisp/obsolete/pgg.el
@@ -7,6 +7,7 @@
 ;; Symmetric encryption added by: Sascha Wilde <wilde@sha-bang.de>
 ;; Created: 1999/10/28
 ;; Keywords: PGP
+;; Obsolete-since: 24.1
 
 ;; This file is part of GNU Emacs.