diff --git a/config/filter.d/nagios.conf b/config/filter.d/nagios.conf
index d01769cc..283aa987 100644
--- a/config/filter.d/nagios.conf
+++ b/config/filter.d/nagios.conf
@@ -13,7 +13,7 @@ before = common.conf
 _daemon     = nrpe
 failregex   = ^%(__prefix_line)sHost <HOST> is not allowed to talk to us!\s*$
             = ^%(__prefix_line)sConnection from <HOST> closed. We don't support AF_INET6 addreess family in ACL\s*$
-ignoreregex =.
+ignoreregex =
 
 
 # DEV Notes: