diff --git a/lib/logstash/outputs/syslog.rb b/lib/logstash/outputs/syslog.rb
index adbd7a9..6ea82e0 100644
--- a/lib/logstash/outputs/syslog.rb
+++ b/lib/logstash/outputs/syslog.rb
@@ -29,10 +29,12 @@ class LogStash::Outputs::Syslog < LogStash::Outputs::Base
     "network news",
     "uucp",
     "clock",
+    "security/authorization2",
     "ftp",
     "ntp",
     "log audit",
     "log alert",
+    "clock2",
     "local0",
     "local1",
     "local2",