diff --git a/sdk_container/src/third_party/coreos-overlay/sys-libs/nss-usrfiles/nss-usrfiles-9999.ebuild b/sdk_container/src/third_party/coreos-overlay/sys-libs/nss-usrfiles/nss-usrfiles-9999.ebuild
index 52193412fa..45ca9a2727 100644
--- a/sdk_container/src/third_party/coreos-overlay/sys-libs/nss-usrfiles/nss-usrfiles-9999.ebuild
+++ b/sdk_container/src/third_party/coreos-overlay/sys-libs/nss-usrfiles/nss-usrfiles-9999.ebuild
@@ -13,7 +13,7 @@ else
 	KEYWORDS="amd64 arm arm64 x86"
 fi
 
-inherit cros-workon
+inherit cros-workon toolchain-funcs
 
 DESCRIPTION="NSS module for data sources under /usr on for CoreOS"
 HOMEPAGE="https://github.com/coreos/nss-altfiles"