diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-3.18.1.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-3.18.1.ebuild
index cb66ab245d..ecbb54a069 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-3.18.1.ebuild
+++ b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-kernel/coreos-kernel-3.18.1.ebuild
@@ -5,4 +5,4 @@ EAPI=5
 inherit coreos-kernel
 
 DESCRIPTION="CoreOS Linux kernel"
-KEYWORDS="~amd64"
+KEYWORDS="amd64"
diff --git a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-sources/coreos-sources-3.18.1.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-sources/coreos-sources-3.18.1.ebuild
index 9d70d3a709..358a9fd69d 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-sources/coreos-sources-3.18.1.ebuild
+++ b/sdk_container/src/third_party/coreos-overlay/sys-kernel/coreos-sources/coreos-sources-3.18.1.ebuild
@@ -12,7 +12,7 @@ DESCRIPTION="Full sources for the Linux kernel"
 HOMEPAGE="http://www.kernel.org"
 SRC_URI="${KERNEL_URI}"
 
-KEYWORDS="~amd64"
+KEYWORDS="amd64"
 IUSE=""
 
 # This ebuild is essentially equivalent to the upstream vanilla-sources