diff --git a/tests/domain/tasks/test_subtasks.py b/tests/domain/tasks/test_subtasks.py
index 8cee44960..d379439c6 100644
--- a/tests/domain/tasks/test_subtasks.py
+++ b/tests/domain/tasks/test_subtasks.py
@@ -58,6 +58,20 @@ def test_start_rejects_from_terminal_status() -> None:
         st.start()
 
 
+def test_start_restarts_a_failed_subtask_for_a_rerun() -> None:
+    # arrange
+    st = SubTask.create(task_id=uuid4())
+    st.start()
+    st.fail(RuntimeError("degenerate prediction"))
+
+    # act
+    st.start()
+
+    # assert
+    assert st.status is SubTaskStatus.IN_PROGRESS
+    assert st.job_completed is None
+
+
 def test_complete_marks_outputs_and_job_completed() -> None:
     # arrange
     st = SubTask.create(task_id=uuid4())