diff --git a/build_library/catalyst.sh b/build_library/catalyst.sh
index a0aeab2db0..595065da8b 100644
--- a/build_library/catalyst.sh
+++ b/build_library/catalyst.sh
@@ -87,9 +87,6 @@ cat <<EOF
 [DEFAULT]
 main-repo = portage-stable
 
-[gentoo]
-disabled = true
-
 [coreos]
 location = /var/gentoo/repos/local
 
diff --git a/build_library/dev_container_util.sh b/build_library/dev_container_util.sh
index b4a6753bde..7fa195b443 100755
--- a/build_library/dev_container_util.sh
+++ b/build_library/dev_container_util.sh
@@ -44,9 +44,6 @@ sudo_clobber "$1/etc/portage/repos.conf/coreos.conf" <<EOF
 [DEFAULT]
 main-repo = portage-stable
 
-[gentoo]
-disabled = true
-
 [coreos]
 location = /var/lib/portage/coreos-overlay
 sync-type = git
diff --git a/update_chroot b/update_chroot
index 81b94f85c6..a829d74cbd 100755
--- a/update_chroot
+++ b/update_chroot
@@ -109,9 +109,6 @@ sudo_clobber "/etc/portage/repos.conf/coreos.conf" <<EOF
 [DEFAULT]
 main-repo = portage-stable
 
-[gentoo]
-disabled = true
-
 [coreos]
 location = ${COREOS_OVERLAY}