diff --git a/scipost/utils.py b/scipost/utils.py
index f3866b71aee1b63893421233db3db2b6c08ca3c1..6f5995a6d810e556c4bde293db2807297ba8adc0 100644
--- a/scipost/utils.py
+++ b/scipost/utils.py
@@ -448,7 +448,7 @@ class Utils(object):
             emailmessage = EmailMultiAlternatives(
                 'SciPost: invitation', email_text,
                 #'J.-S. Caux <jscaux@scipost.org>',
-                'SciPost registration <registration@scipost.org>'
+                'SciPost registration <registration@scipost.org>',
                 [cls.invitation.email],
                 bcc=['registration@scipost.org'],
                 reply_to=['registration@scipost.org'])