diff --git a/tools/testing/selftests/ublk/test_generic_06.sh b/tools/testing/selftests/ublk/test_generic_06.sh
index b67230c42c84..fd42062b7b76 100755
--- a/tools/testing/selftests/ublk/test_generic_06.sh
+++ b/tools/testing/selftests/ublk/test_generic_06.sh
@@ -17,7 +17,7 @@ STARTTIME=${SECONDS}
 dd if=/dev/urandom of=/dev/ublkb${dev_id} oflag=direct bs=4k count=1 status=none > /dev/null 2>&1 &
 dd_pid=$!
 
-__ublk_kill_daemon ${dev_id} "DEAD"
+__ublk_kill_daemon ${dev_id} "DEAD" >/dev/null
 
 wait $dd_pid
 dd_exitcode=$?