diff --git a/Makefile b/Makefile
index 14d452b..1fce2e8 100644
--- a/Makefile
+++ b/Makefile
@@ -21,6 +21,7 @@ docker-image-test: docker-image
 	docker run --rm $(DOCKER_ORGANIZATION)/$(DOCKER_IMAGE) sh -c "/usr/bin/pacman -Syu --noconfirm docker && docker -v"
 	# Ensure that the image does not include a private key
 	! docker run --rm $(DOCKER_ORGANIZATION)/$(DOCKER_IMAGE) pacman-key --lsign-key pierre@archlinux.de
+	docker run --rm $(DOCKER_ORGANIZATION)/$(DOCKER_IMAGE) sh -c "/usr/bin/id -u http"
 
 ci-test:
 	docker run --rm --privileged --tmpfs=/tmp:exec --tmpfs=/run/shm -v /run/docker.sock:/run/docker.sock \
diff --git a/packages b/packages
index 983289a..39dffd0 100644
--- a/packages
+++ b/packages
@@ -1,3 +1,4 @@
 sed
 gzip
 pacman
+systemd