diff --git a/spiffworkflow-backend/src/spiffworkflow_backend/routes/process_instances_controller.py b/spiffworkflow-backend/src/spiffworkflow_backend/routes/process_instances_controller.py
index 8501960a..3aaa418f 100644
--- a/spiffworkflow-backend/src/spiffworkflow_backend/routes/process_instances_controller.py
+++ b/spiffworkflow-backend/src/spiffworkflow_backend/routes/process_instances_controller.py
@@ -600,7 +600,7 @@ def process_instance_task_list(
         last_change = step_details[-1].end_in_seconds or 0
         for spiff_task in tasks.values():
             restore_task(spiff_task, last_change)
-        for spiff_task_id, subprocess in subprocesses.items():
+        for subprocess in subprocesses.values():
             for spiff_task in subprocess["tasks"].values():
                 restore_task(spiff_task, last_change)