diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-3.15.2.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-3.15.2-r1.ebuild
similarity index 100%
rename from sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-3.15.2.ebuild
rename to sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-3.15.2-r1.ebuild
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/x86_64_defconfig-3.15.2 b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/x86_64_defconfig-3.15.2-r1
similarity index 99%
rename from sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/x86_64_defconfig-3.15.2
rename to sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/x86_64_defconfig-3.15.2-r1
index ccc49ac78b..b909fbaee5 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/x86_64_defconfig-3.15.2
+++ b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/files/x86_64_defconfig-3.15.2-r1
@@ -1610,7 +1610,7 @@ CONFIG_NETDEVICES=y
 CONFIG_MII=m
 CONFIG_NET_CORE=y
 CONFIG_BONDING=m
-# CONFIG_DUMMY is not set
+CONFIG_DUMMY=m
 # CONFIG_EQUALIZER is not set
 # CONFIG_NET_FC is not set
 # CONFIG_IFB is not set