diff --git a/semaphoreci/semaphore-runner.sh b/semaphoreci/semaphore-runner.sh
index 6864a137b1..897b398df9 100755
--- a/semaphoreci/semaphore-runner.sh
+++ b/semaphoreci/semaphore-runner.sh
@@ -37,7 +37,7 @@ apt-get -q --allow-releaseinfo-change update
 apt-get -y dist-upgrade
 apt-get install -y eatmydata
 # The following four are needed as long as these deps are not covered by Debian's own packaging
-apt-get install -y fdisk libfdisk-dev libp11-kit-dev libssl-dev libpwquality-dev
+apt-get install -y fdisk tree libfdisk-dev libp11-kit-dev libssl-dev libpwquality-dev
 apt-get purge --auto-remove -y unattended-upgrades
 systemctl unmask systemd-networkd
 systemctl enable systemd-networkd