diff --git a/sys/user_cull.py b/sys/user_cull.py
index 70c23f6..2786d88 100755
--- a/sys/user_cull.py
+++ b/sys/user_cull.py
@@ -48,7 +48,7 @@ if timeout == 'auto':
         if not os.path.isfile(f):
             continue
         with open(f, 'r') as fh:
-            conf = f.read()
+            conf = fh.read()
         for line in conf.splitlines():
             if tmout_re.search(line):
                 try: