diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-4.13.0.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-4.13.0-r1.ebuild
similarity index 100%
rename from sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-4.13.0.ebuild
rename to sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-4.13.0-r1.ebuild
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/coreos-modules-4.13.0.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/coreos-modules-4.13.0-r1.ebuild
similarity index 100%
rename from sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/coreos-modules-4.13.0.ebuild
rename to sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/coreos-modules-4.13.0-r1.ebuild
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/files/commonconfig-4.13 b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/files/commonconfig-4.13
index ecc6c434cf..a961e2ea38 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/files/commonconfig-4.13
+++ b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-modules/files/commonconfig-4.13
@@ -869,6 +869,7 @@ CONFIG_SECURITY=y
 CONFIG_SECURITY_NETWORK=y
 CONFIG_SECURITY_NETWORK_XFRM=y
 CONFIG_HARDENED_USERCOPY=y
+CONFIG_FORTIFY_SOURCE=y
 CONFIG_SECURITY_SELINUX=y
 CONFIG_SECURITY_SELINUX_BOOTPARAM=y
 CONFIG_IMA=y