diff --git a/tester.py b/tester.py
index f3851b4d2cb3714ac9055d86ed0c1d31966ab0bd..5366f6845b02efbc61865b501f2201e35c79935c 100755
--- a/tester.py
+++ b/tester.py
@@ -430,7 +430,8 @@ class Tester():
                 recipients = recipients.replace('sysadmin@ubicast.eu', '').replace(',,', ',')
             elif utils.get_conf('PREMIUM_SUPPORT') != '0':
                 system_domain = '[PREMIUM] %s' % system_domain
-                recipients = recipients.replace('sysadmin@ubicast.eu', 'sysadmin+premium@ubicast.eu')
+                recipients = recipients.replace('sysadmin@ubicast.eu', '').replace(',,', ',')
+                recipients += ',sysadmin+premium@ubicast.eu'
             recipients = recipients.strip(',')
             if not recipients:
                 log('No recipients defined for email sending. Set a value for EMAIL_ADMINS.')