diff --git a/fritzbox_connection_uptime.py b/fritzbox_connection_uptime.py
index 9c7916a..c16229c 100755
--- a/fritzbox_connection_uptime.py
+++ b/fritzbox_connection_uptime.py
@@ -14,6 +14,7 @@
   #%# capabilities=autoconf
 """
 
+import os
 import sys
 
 from fritzconnection import FritzConnection