diff --git a/grc/.config/grc/conf.nmap b/grc/.config/grc/conf.nmap
index ade0a238..eee057fc 100644
--- a/grc/.config/grc/conf.nmap
+++ b/grc/.config/grc/conf.nmap
@@ -35,9 +35,9 @@ regexp=Network Distance:\s(\d+)
 colours=default,bold green
 -
 # commmon name
-regexp=commonName=([0-9a-z.*]*)
+regexp=commonName=([0-9a-z.\-*]*)
 colours=default,bold green
 -
 # SAN
-regexp=DNS:([0-9a-z.*]*)
+regexp=DNS:([0-9a-z.\-*]*)
 colours=default,bold green