diff --git a/tester.py b/tester.py
index 2b5a79442d6771617f9fa8bf9fedc73292f83afc..f5ca0a6654d356284c9d9d75605af9a40d49dfea 100755
--- a/tester.py
+++ b/tester.py
@@ -154,6 +154,7 @@ class Tester():
             if not hostname:
                 log('Failed to get hostname (required to send email).')
                 return 1
+            hostname = hostname.decode('utf-8')
             recipients = utils.get_conf('EMAIL_ADMINS')
             if not recipients:
                 log('No recipients defined for email sending. Set a value for EMAIL_ADMINS.')
@@ -181,7 +182,7 @@ Content-transfer-encoding: utf-8
 
 %(log_content)s''' % dict(
                 boundary=boundary,
-                hostname=hostname.decode('utf-8'),
+                hostname=hostname,
                 recipients=recipients,
                 status='OK' if exit_code == 0 else 'KO',
                 date=now.strftime('%Y-%m-%d %H:%M:%S'),