diff --git a/config/filter.d/nginx-botsearch.conf b/config/filter.d/nginx-botsearch.conf
index a45909de..6d696de6 100644
--- a/config/filter.d/nginx-botsearch.conf
+++ b/config/filter.d/nginx-botsearch.conf
@@ -4,7 +4,7 @@
 [Definition]
 
 failregex = ^<HOST> \- \S+ \[\] \"(GET|POST) \/<block> \S+\" 404 .+$
-			^ \[error\] \d+#\d+: \*\d+ (\S+ )?\"\S+\" (failed|is not found) \(2\: No such file or directory\), client\: <HOST>\, server\: \S*\, request: \"(GET|POST) \/<block> \S+\"\, .*?$
+            ^ \[error\] \d+#\d+: \*\d+ (\S+ )?\"\S+\" (failed|is not found) \(2\: No such file or directory\), client\: <HOST>\, server\: \S*\, request: \"(GET|POST) \/<block> \S+\"\, .*?$
 
 ignoreregex =