diff --git a/src/test/test-execute.c b/src/test/test-execute.c
index 4b8daa46bb..56f5e340be 100644
--- a/src/test/test-execute.c
+++ b/src/test/test-execute.c
@@ -832,6 +832,8 @@ static void test_exec_systemcallfilter(Manager *m) {
                 return;
         }
 
+        test(m, "exec-systemcallfilter-writing-handoff-timestamp.service", 0, CLD_EXITED);
+
         test(m, "exec-systemcallfilter-not-failing.service", 0, CLD_EXITED);
         test(m, "exec-systemcallfilter-not-failing2.service", 0, CLD_EXITED);
         test(m, "exec-systemcallfilter-not-failing3.service", 0, CLD_EXITED);
diff --git a/test/test-execute/exec-systemcallfilter-writing-handoff-timestamp.service b/test/test-execute/exec-systemcallfilter-writing-handoff-timestamp.service
new file mode 100644
index 0000000000..3bf2a6470c
--- /dev/null
+++ b/test/test-execute/exec-systemcallfilter-writing-handoff-timestamp.service
@@ -0,0 +1,11 @@
+# SPDX-License-Identifier: LGPL-2.1-or-later
+[Unit]
+Description=Test for SystemCallFilter
+
+[Service]
+ExecStart=true
+Type=oneshot
+# For issue #33299
+SystemCallFilter=~@network-io
+SystemCallFilter=~write
+SystemCallErrorNumber=ENOSYS