diff --git a/admin/mail_invalide/mail_invalide.py b/admin/mail_invalide/mail_invalide.py
index 77be31c3..fd75ebbb 100755
--- a/admin/mail_invalide/mail_invalide.py
+++ b/admin/mail_invalide/mail_invalide.py
@@ -18,6 +18,8 @@ from config import upload
 # logging tools
 import syslog
 def log(x):
+    if type(x) == unicode:
+        x = x.encode("utf-8")
     syslog.openlog('GENERATE_MAIL_INVALIDE_NOTICE')
     syslog.syslog(x)
     syslog.closelog()