diff --git a/blender-bfct/application/models/users.py b/blender-bfct/application/models/users.py
index 60a7aa0..7f4e264 100644
--- a/blender-bfct/application/models/users.py
+++ b/blender-bfct/application/models/users.py
@@ -18,8 +18,8 @@ class User(db.Model, UserMixin):
     roles = db.relationship('Role', secondary='roles_users',
                             backref=db.backref('users', lazy='dynamic'))
 
-    def __str__(self):
-        return self.email
+    def __unicode__(self):
+        return unicode(self.email) or u''
 
 
 class Role(db.Model, RoleMixin):