diff --git a/passerelle_montpellier_encombrants/forms.py b/passerelle_montpellier_encombrants/forms.py
index 359f09c..34f3f85 100644
--- a/passerelle_montpellier_encombrants/forms.py
+++ b/passerelle_montpellier_encombrants/forms.py
@@ -31,7 +31,7 @@ class ListValidator(object):
         for i, item in enumerate(value):
             try:
                 self.item_validator(item)
-            except ValidationError, e:
+            except ValidationError as e:
                 raise