diff --git a/gitosis/app.py b/gitosis/app.py
index d3180ce..9da247d 100644
--- a/gitosis/app.py
+++ b/gitosis/app.py
@@ -79,7 +79,7 @@ class App(object):
             pass
         else:
             try:
-                symbolic = logging._levelNames[loglevel]
+                symbolic = logging._nameToLevel[loglevel]
             except KeyError:
                 log.warning(
                     'Ignored invalid loglevel configuration: %r',