diff --git a/scripts/nagios/cron_file_helper.py b/scripts/nagios/cron_file_helper.py
index 3436bf8dbd..7b9d5268cb 100644
--- a/scripts/nagios/cron_file_helper.py
+++ b/scripts/nagios/cron_file_helper.py
@@ -1,7 +1,11 @@
 #!/usr/bin/env python
 import time
 
+# Avoid requiring the typing module to be installed
+if False: from typing import Tuple
+
 def nagios_from_file(results_file):
+    # type: (str) -> Tuple[int, str]
     """Returns a nagios-appropriate string and return code obtained by
     parsing the desired file on disk. The file on disk should be of format