diff --git a/emacs-compiled-timestamps.patch b/emacs-compiled-timestamps.patch
new file mode 100644
index 0000000..78ab491
--- /dev/null
+++ b/emacs-compiled-timestamps.patch
@@ -0,0 +1,17 @@
+diff --git a/lisp/emacs-lisp/bytecomp.el b/lisp/emacs-lisp/bytecomp.el
+index ce3a332..749ec66 100644
+--- a/lisp/emacs-lisp/bytecomp.el
++++ b/lisp/emacs-lisp/bytecomp.el
+@@ -1981,11 +1981,7 @@ Call from the source buffer."
+       ;; >4	byte		x		version %d
+       (insert
+        ";ELC" 23 "\000\000\000\n"
+-       ";;; Compiled by "
+-       (or (and (boundp 'user-mail-address) user-mail-address)
+-	   (concat (user-login-name) "@" (system-name)))
+-       " on " (current-time-string) "\n"
+-       ";;; from file " filename "\n"
++       ";;; Compiled\n"
+        ";;; in Emacs version " emacs-version "\n"
+        ";;; with"
+        (cond
diff --git a/emacs.spec b/emacs.spec
index 405f3a9..e8e1e85 100644
--- a/emacs.spec
+++ b/emacs.spec
@@ -3,7 +3,7 @@ Summary: GNU Emacs text editor
 Name: emacs
 Epoch: 1
 Version: 24.3
-Release: 17%{?dist}
+Release: 18%{?dist}
 License: GPLv3+
 URL: http://www.gnu.org/software/emacs/
 Group: Applications/Editors
@@ -40,6 +40,7 @@ Patch18: emacs-CVE-2014-3421.patch
 Patch19: emacs-CVE-2014-3422.patch
 Patch20: emacs-CVE-2014-3423.patch
 Patch21: emacs-CVE-2014-3424.patch
+Patch22: emacs-compiled-timestamps.patch
 
 BuildRequires: atk-devel cairo-devel freetype-devel fontconfig-devel dbus-devel giflib-devel glibc-devel libpng-devel
 BuildRequires: libjpeg-devel libtiff-devel libX11-devel libXau-devel libXdmcp-devel libXrender-devel libXt-devel
@@ -188,6 +189,7 @@ packages that add functionality to Emacs.
 %patch19 -p1 -b .CVE-2014-3422.patch
 %patch20 -p1 -b .CVE-2014-3423.patch
 %patch21 -p1 -b .CVE-2014-3424.patch
+%patch22 -p1 -b .compiled-timestamps
 
 # We prefer our emacs.desktop file
 cp %SOURCE1 etc/emacs.desktop
@@ -470,6 +472,9 @@ update-desktop-database &> /dev/null || :
 %dir %{_datadir}/emacs/site-lisp/site-start.d
 
 %changelog
+* Tue Jul 29 2014 Petr Hracek <phracek@redhat.com> - 1:24.3-18
+- Add patch to remove timstamp from .elc files (#1122157)
+
 * Tue May 20 2014 Petr Hracek <phracek@redhat.com> - 1:24.3-17
 - CVE-2014-3421 CVE-2014-3422 CVE-2014-3423 CVE-2014-3424 (#1095587)