diff --git a/master.cfg b/master.cfg
index d564818..8dd25f6 100644
--- a/master.cfg
+++ b/master.cfg
@@ -251,8 +251,7 @@ subsequent commits are made after X, by different people."""
     mail = MIMEText (text)
     mail['Subject'] = sbj
     mail['From'] = GDB_MAIL_FROM
-    mail['To'] = to
-    mail['Cc'] = 'gdb-patches@sourceware.org'
+    mail['To'] = to + ',gdb-patches@sourceware.org'
 
     s = smtplib.SMTP ('localhost')
     s.sendmail (GDB_MAIL_FROM, [ to ], mail.as_string ())