diff --git a/sdk_container/src/third_party/coreos-overlay/profiles/default/linux/package.accept_keywords b/sdk_container/src/third_party/coreos-overlay/profiles/default/linux/package.accept_keywords
index 4174a2be1a..ffc569f881 100644
--- a/sdk_container/src/third_party/coreos-overlay/profiles/default/linux/package.accept_keywords
+++ b/sdk_container/src/third_party/coreos-overlay/profiles/default/linux/package.accept_keywords
@@ -1,4 +1,5 @@
 # Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
+# Copyright (c) 2013 The CoreOS Authors. All rights reserved.
 # Distributed under the terms of the GNU General Public License v2
 
 =app-emulation/qemu-kvm-0.15.1-r2 amd64
@@ -99,3 +100,7 @@
 
 # Fixes XML validation failure and python eclass usage
 =dev-lang/yasm-1.2.0-r1
+
+# efitools and dependency libraries for signing kernel images
+>=sys-boot/gnu-efi-3.0u		~amd64
+>=app-crypt/efitools-1.4.1-r2	~amd64