diff --git a/config/filter.d/asterisk.conf b/config/filter.d/asterisk.conf
index e4e5de5f..fef43693 100644
--- a/config/filter.d/asterisk.conf
+++ b/config/filter.d/asterisk.conf
@@ -30,7 +30,7 @@ failregex = ^%(log_prefix)s Registration from '[^']*' failed for '<HOST>(:\d+)?'
             ^%(log_prefix)s Host <HOST> failed to authenticate as '[^']*'$
             ^%(log_prefix)s No registration for peer '[^']*' \(from <HOST>\)$
             ^%(log_prefix)s Host <HOST> failed MD5 authentication for '[^']*' \([^)]+\)$
-            ^%(log_prefix)s Failed to authenticate user [^@]+@<HOST>\S*$
+            ^%(log_prefix)s Failed to authenticate (user|device) [^@]+@<HOST>\S*$
             ^%(log_prefix)s (?:handle_request_subscribe: )?Sending fake auth rejection for (device|user) \d*<sip:[^@]+@<HOST>>;tag=\w+\S*$
             ^%(log_prefix)s SecurityEvent="(FailedACL|InvalidAccountID|ChallengeResponseFailed|InvalidPassword)",EventTV="[\d-]+",Severity="[\w]+",Service="[\w]+",EventVersion="\d+",AccountID="\d+",SessionID="0x[\da-f]+",LocalAddress="IPV[46]/(UD|TC)P/[\da-fA-F:.]+/\d+",RemoteAddress="IPV[46]/(UD|TC)P/<HOST>/\d+"(,Challenge="\w+",ReceivedChallenge="\w+")?(,ReceivedHash="[\da-f]+")?$
 
diff --git a/testcases/files/logs/asterisk b/testcases/files/logs/asterisk
index ec2fec7c..b2eb7738 100644
--- a/testcases/files/logs/asterisk
+++ b/testcases/files/logs/asterisk
@@ -1,4 +1,6 @@
 # Sample log files for asterisk 
+# failJSON: { "time": "2013-07-25T07:26:43", "match": true , "host": "1.2.3.4" }
+[2013-07-25 07:26:43] NOTICE[26015][C-000006b2] chan_sip.c: Failed to authenticate device 101<sip:101@1.2.3.4>;tag=deadbeef
 # failJSON: { "time": "2012-02-13T17:21:54", "match": true , "host": "1.2.3.4" }
 [2012-02-13 17:21:54] NOTICE[1638] chan_sip.c: Registration from '<sip:301@example.com>' failed for '1.2.3.4' - Wrong password
 # failJSON: { "time": "2012-02-13T17:18:22", "match": true , "host": "1.2.3.4" }