diff --git a/sdk_container/src/third_party/coreos-overlay/coreos/config/make.conf.amd64-host b/sdk_container/src/third_party/coreos-overlay/coreos/config/make.conf.amd64-host
index ca25b96f1f..18565d18d3 100644
--- a/sdk_container/src/third_party/coreos-overlay/coreos/config/make.conf.amd64-host
+++ b/sdk_container/src/third_party/coreos-overlay/coreos/config/make.conf.amd64-host
@@ -51,4 +51,4 @@ PKG_INSTALL_MASK="${INSTALL_MASK}"
 # be utilized nowhere else!
 CROS_SDK_HOST="cros-sdk-host"
 
-source make.conf.host_setup
+source /etc/portage/make.conf.host_setup