diff --git a/test/units/TEST-07-PID1.subgroup-kill.sh b/test/units/TEST-07-PID1.subgroup-kill.sh
index c8eb6539ab..274e495af4 100755
--- a/test/units/TEST-07-PID1.subgroup-kill.sh
+++ b/test/units/TEST-07-PID1.subgroup-kill.sh
@@ -36,4 +36,4 @@ systemctl kill user@"$(id -u testuser)".service --kill-subgroup=app.slice/subgro
 run0 -u testuser systemctl --user is-active subgroup-test.service
 systemctl kill user@"$(id -u testuser)".service --kill-subgroup=app.slice/subgroup-test.service --kill-whom=cgroup-fail
 
-timeout 60 bash -c 'while run0 -u testuser systemctl --user is-active subgroup-test.service; do sleep 1; done'
+timeout --foreground 60 bash -c 'while run0 -u testuser systemctl --user is-active subgroup-test.service; do sleep 1; done'