diff --git a/config/filter.d/lighttpd-auth.conf b/config/filter.d/lighttpd-auth.conf
index 11f6d0bb..a68f4f4d 100644
--- a/config/filter.d/lighttpd-auth.conf
+++ b/config/filter.d/lighttpd-auth.conf
@@ -3,7 +3,7 @@
 
 [Definition]
 
-failregex = ^: \((http|mod)_auth\.c\.\d+\) (password doesn\'t match .* username: .*|digest: auth failed for .*: wrong password|get_password failed), IP: <HOST>\s*$
+failregex = ^: \((?:http|mod)_auth\.c\.\d+\) (?:password doesn\'t match .* username: .*|digest: auth failed for .*: wrong password|get_password failed), IP: <HOST>\s*$
 
 ignoreregex =