diff --git a/sdk_container/src/third_party/coreos-overlay/coreos/config/make.conf.common-target b/sdk_container/src/third_party/coreos-overlay/coreos/config/make.conf.common-target
index 067f5ae932..2f447794ad 100644
--- a/sdk_container/src/third_party/coreos-overlay/coreos/config/make.conf.common-target
+++ b/sdk_container/src/third_party/coreos-overlay/coreos/config/make.conf.common-target
@@ -63,8 +63,8 @@ DISTDIR="/var/lib/portage/distfiles-target"
 GENTOO_MIRRORS="http://gentoo.osuosl.org/"
 
 # Username and home directory of the shared user.
-SHARED_USER_NAME="chronos"
-SHARED_USER_HOME="/home/chronos/user"
+SHARED_USER_NAME="core"
+SHARED_USER_HOME="/home/core/user"
 SHARED_USER_PASSWD_FILE="/etc/shared_user_passwd.txt"
 
 # the AC_FUNC_WAIT3 macro uses runtime-checks for the function, which