diff --git a/doc/conf/modules.optional.conf b/doc/conf/modules.optional.conf
index 4c4f1fcfa..1a8043091 100644
--- a/doc/conf/modules.optional.conf
+++ b/doc/conf/modules.optional.conf
@@ -125,8 +125,8 @@ set {
 		 * NOTE: Use the REAL host or IP here, not any cloaked hosts!
 		 */
 		except-hosts {
-			mask 192.168.*;
-			mask 127.*;
+			mask 192.168.0.0/16;
+			mask 127.0.0.0/8;
 		}
 
 		/* EXCEPT-WEBIRC: