diff --git a/package/etc/conf.d/filters/cisco/cisco_syslog.conf b/package/etc/conf.d/filters/cisco/cisco_syslog.conf
index cb8378d..a8276a7 100644
--- a/package/etc/conf.d/filters/cisco/cisco_syslog.conf
+++ b/package/etc/conf.d/filters/cisco/cisco_syslog.conf
@@ -45,7 +45,7 @@ parser cisco-parser-ex{
         } elif {
             # Cisco Nexus Switch
             filter {
-                message('^<(?<pri>\d*)> ?20\d\d (\w\w\w \d+ \d\d:\d\d:\d\d(?:.\d{1,3})?) ([^ ]+) ((%[^\: ]+)\:? ?.*)'
+                message('^<(?<pri>\d*)> ?20\d\d (\w\w\w \d+ \d\d:\d\d:\d\d(?:.\d{3,3})?) ([^ ]+) ((%[^\: ]+)\:? ?.*)'
                 flags(store-matches));
             };            
             rewrite {