diff --git a/src/opnsense/mvc/app/library/OPNsense/Firewall/Rule.php b/src/opnsense/mvc/app/library/OPNsense/Firewall/Rule.php
index 0eb7ca9b59..1323d2c9d5 100644
--- a/src/opnsense/mvc/app/library/OPNsense/Firewall/Rule.php
+++ b/src/opnsense/mvc/app/library/OPNsense/Firewall/Rule.php
@@ -228,7 +228,7 @@ abstract class Rule
     }
 
     /**
-     * parse data, use replace map for CSV values
+     * parse data, use replace map for comma-separated values
      * @param string $values combined field values
      * @param string $map
      * @param string $prefix