diff --git a/gentoo-base.Dockerfile b/gentoo-base.Dockerfile
index 73ea737..6c480f5 100644
--- a/gentoo-base.Dockerfile
+++ b/gentoo-base.Dockerfile
@@ -18,11 +18,10 @@ RUN eselect profile set default/linux/amd64/17.1/no-multilib
 RUN quickpkg --include-config=y @world sys-libs/glibc
 RUN emerge --root=/workdir --buildpkg=y --usepkg --quiet sys-apps/portage
 # Needed for locale generation.
-RUN emerge --root=/workdir --buildpkg=y --usepkg --quiet \
+RUN emerge --root=/workdir --buildpkg=y --usepkg --quiet --noreplace \
     sys-apps/grep sys-apps/gawk app-arch/gzip sys-devel/gcc
-RUN mkdir -p /workdir/etc/portage \
-    && cp /etc/portage/make.conf /workdir/etc/portage/make.conf
-RUN mkdir /workdir/etc/portage/repos.conf \
+RUN mkdir -p /workdir/etc/portage/repos.conf \
+    && cp /etc/portage/make.conf /workdir/etc/portage/make.conf \
     && echo -e '[gentoo]\nlocation = /var/db/repos/gentoo' \
     > /workdir/etc/portage/repos.conf/gentoo.conf
 RUN rm -r /workdir/usr/lib/python*/{unit,}test