diff --git a/c2cgeoportal/views/entry.py b/c2cgeoportal/views/entry.py
index 23304666af..8ab29ad7ff 100644
--- a/c2cgeoportal/views/entry.py
+++ b/c2cgeoportal/views/entry.py
@@ -1549,7 +1549,7 @@ def logout(self):
             log.info("Logout on non login user.")
             raise HTTPBadRequest("See server logs for details")
 
-        log.info(u"User '{0!s}' ({1:d}) logging out.".format(
+        log.info(u"User '{}' ({}) logging out.".format(
             self.request.user.username,
             self.request.user.id
         ))