diff --git a/web.py b/web.py
index 38edbcf..879b5c9 100644
--- a/web.py
+++ b/web.py
@@ -15,7 +15,6 @@ import pytz
 import re
 import stat
 import subprocess
-import sys
 import timeago
 
 from pygments import highlight
@@ -88,7 +87,7 @@ def list_repositories():
 
 if not os.path.isdir(GITOLITE_REPOSITORIES_ROOT):
     print('Invalid repositories path: {}'.format(GITOLITE_REPOSITORIES_ROOT))
-    sys.exit()
+    exit(4)
 
 # This only exists for exporting the bottle app object for a WSGI server such as Gunicorn
 application = bottle.app()