diff --git a/system_tests/test_adsim.py b/system_tests/test_adsim.py
index 67695cfba9..a8d342cec5 100644
--- a/system_tests/test_adsim.py
+++ b/system_tests/test_adsim.py
@@ -42,6 +42,7 @@ def documents_from_num(
     return docs
 
 
+@pytest.mark.t01
 @pytest.mark.parametrize(
     "documents_from_num, shape", ([1, (1,)], [3, (3,)]), indirect=["documents_from_num"]
 )
@@ -63,6 +64,7 @@ def test_plan_produces_expected_start_document(
     )
 
 
+@pytest.mark.t01
 @pytest.mark.parametrize(
     "documents_from_num, length", ([1, 1], [3, 3]), indirect=["documents_from_num"]
 )
@@ -76,6 +78,7 @@ def test_plan_produces_expected_stop_document(
     assert stop.get("exit_status") == "success"
 
 
+@pytest.mark.t01
 @pytest.mark.parametrize("documents_from_num", [1], indirect=True)
 def test_plan_produces_expected_descriptor(
     documents_from_num: dict[str, list[DocumentType]], det: StandardDetector
@@ -88,6 +91,7 @@ def test_plan_produces_expected_descriptor(
     assert descriptor.get("name") == "primary"
 
 
+@pytest.mark.t01
 @pytest.mark.parametrize(
     "documents_from_num, length", ([1, 1], [3, 3]), indirect=["documents_from_num"]
 )
@@ -104,6 +108,7 @@ def test_plan_produces_expected_events(
         assert event.get("seq_num") == i + 1
 
 
+@pytest.mark.t01
 @pytest.mark.parametrize("documents_from_num", [1, 3], indirect=True)
 def test_plan_produces_expected_resources(
     documents_from_num: dict[str, list[DocumentType]],
@@ -124,6 +129,7 @@ def test_plan_produces_expected_resources(
         }
 
 
+@pytest.mark.t01
 @pytest.mark.parametrize(
     "documents_from_num, length", ([1, 1], [3, 3]), indirect=["documents_from_num"]
 )