diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-6.6.127.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-6.6.127.ebuild
index 5aad6bb286..0ce8ff275c 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-6.6.127.ebuild
+++ b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-6.6.127.ebuild
@@ -2,7 +2,7 @@
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
-COREOS_SOURCE_REVISION=""
+COREOS_SOURCE_REVISION="-r1"
 inherit coreos-kernel
 
 DESCRIPTION="CoreOS Linux kernel"