diff --git a/tools/osbuilder/rootfs-builder/rootfs.sh b/tools/osbuilder/rootfs-builder/rootfs.sh
index 02e95f73d4..fabbba4ee6 100755
--- a/tools/osbuilder/rootfs-builder/rootfs.sh
+++ b/tools/osbuilder/rootfs-builder/rootfs.sh
@@ -35,6 +35,9 @@ AGENT_TARBALL=${AGENT_TARBALL:-""}
 COCO_GUEST_COMPONENTS_TARBALL=${COCO_GUEST_COMPONENTS_TARBALL:-""}
 CONFIDENTIAL_GUEST="${CONFIDENTIAL_GUEST:-no}"
 PAUSE_IMAGE_TARBALL=${PAUSE_IMAGE_TARBALL:-""}
+DNF_CONF=${DNF_CONF:-""}
+DISTRO_REPO=${DISTRO_REPO:-""}
+PKG_MANAGER=${PKG_MANAGER:-""}
 
 lib_file="${script_dir}/../scripts/lib.sh"
 source "$lib_file"