diff --git a/selfdrive/manager/manager.py b/selfdrive/manager/manager.py
index 1128097251..1b10cee806 100755
--- a/selfdrive/manager/manager.py
+++ b/selfdrive/manager/manager.py
@@ -153,7 +153,7 @@ def manager_thread() -> None:
     for param in ("DoUninstall", "DoShutdown", "DoReboot"):
       if params.get_bool(param):
         shutdown = True
-        params.put("LastManagerExitReason", param)
+        params.put("LastManagerExitReason", f"{param} {datetime.datetime.now()}")
         cloudlog.warning(f"Shutting down manager - {param} set")
 
     if shutdown: