diff --git a/agents/s07_task_system.py b/agents/s07_task_system.py
index 8b4e7ac..136ec9e 100644
--- a/agents/s07_task_system.py
+++ b/agents/s07_task_system.py
@@ -114,7 +114,7 @@ class TaskManager:
         tasks = []
         files = sorted(
             self.dir.glob("task_*.json"),
-            key=lambda f: int(f.stem.split("_")[-1])
+            key=lambda f: int(f.stem.split("_")[1])
         )
         for f in files:
             tasks.append(json.loads(f.read_text()))