diff --git a/config/filter.d/asterisk.conf b/config/filter.d/asterisk.conf
index 0cb1b70a..fb8e4b01 100644
--- a/config/filter.d/asterisk.conf
+++ b/config/filter.d/asterisk.conf
@@ -24,7 +24,7 @@ failregex = ^%(__prefix_line)s%(log_prefix)s Registration from '[^']*' failed fo
             ^%(__prefix_line)s%(log_prefix)s No registration for peer '[^']*' \(from <HOST>\)$
             ^%(__prefix_line)s%(log_prefix)s hacking attempt detected '<HOST>'$
             ^%(__prefix_line)s%(log_prefix)s SecurityEvent="(?:FailedACL|InvalidAccountID|ChallengeResponseFailed|InvalidPassword)"(?:(?:,(?!RemoteAddress=)\w+="[^"]*")*|.*?),RemoteAddress="IPV[46]/(UDP|TCP|WS)/<HOST>/\d+"(?:,(?!RemoteAddress=)\w+="[^"]*")*$
-            ^%(__prefix_line)s%(log_prefix)s "Rejecting unknown SIP connection from <HOST>"$
+            ^%(__prefix_line)s%(log_prefix)s "Rejecting unknown SIP connection from <HOST>(?::\d+)?"$
             ^%(__prefix_line)s%(log_prefix)s Request (?:'[^']*' )?from '(?:[^']*|.*?)' failed for '<HOST>(?::\d+)?'\s\(callid: [^\)]*\) - (?:No matching endpoint found|Not match Endpoint(?: Contact)? ACL|(?:Failed|Error) to authenticate)\s*$
 
 # FreePBX (todo: make optional in v.0.10):