diff --git a/surveillance/deconnexion.py b/surveillance/deconnexion.py
index 82a94aea..da2773f1 100755
--- a/surveillance/deconnexion.py
+++ b/surveillance/deconnexion.py
@@ -199,10 +199,10 @@ for elupload, eltype, elid in uploadeurs:
             data = {'dn': theid,
                     'blid': len(proprio.blacklist())}
             reco_url = mail_module.validation_url('upload', data)
-            reco_url_error = ""
+            reco_url_error = u""
         except Exception as e:
-            reco_url_error = "[[erreur de génération: %r]]" % e
-            reco_url = ""
+            reco_url_error = u"[[erreur de génération: %r]]" % e
+            reco_url = u""
 
         mail_data = {
             'from': upload.expediteur,