diff --git a/test/units/testsuite-02.sh b/test/units/testsuite-02.sh
index bf9a65972f0..b16e8547ab5 100755
--- a/test/units/testsuite-02.sh
+++ b/test/units/testsuite-02.sh
@@ -4,7 +4,8 @@ set -o pipefail
 
 NPROC=$(nproc)
 MAX_QUEUE_SIZE=${NPROC:-2}
-mapfile -t TEST_LIST < <(find /usr/lib/systemd/tests/ -maxdepth 1 -type f -name "test-*")
+TESTS_GLOB=${TESTS_GLOB:-test-*}
+mapfile -t TEST_LIST < <(find /usr/lib/systemd/tests/ -maxdepth 1 -type f -name "${TESTS_GLOB}")
 
 # reset state
 rm -fv /failed-tests /skipped-tests /skipped