diff --git a/gestion/gen_confs/switchs2.py b/gestion/gen_confs/switchs2.py
index 577edabf..76e6853f 100755
--- a/gestion/gen_confs/switchs2.py
+++ b/gestion/gen_confs/switchs2.py
@@ -103,7 +103,7 @@ class Port(object):
         if any("cl" in nom for nom in self.chambres) or self.uplink or \
             self.servers:
             return ''
-        if any( adh['droits'] for adh in self.adherents()):
+        if any( adh.get('droits', None) for adh in self.adherents()):
             return ''
         return 'speed-duplex auto-10-100'