diff --git a/Routing-subdomains.md b/Routing-subdomains.md
index c4b85d5..2dc86b1 100644
--- a/Routing-subdomains.md
+++ b/Routing-subdomains.md
@@ -4,7 +4,7 @@ Iris has the simplest known form for subdomains registration to a single applica
 Subdomains are separated into two categories: **static** and **dynamic/wildcard**.
 
 * Static : when you know the subdomain, i.e : `analytics.mydomain.com`
-* Wildcard : when you don't know the subdomain but you know its form, i.e : `user_created.mydomain.com`, `otheruser.mydomain.com` like the  `username.github.io`
+* Wildcard : when you don't know the subdomain but you know that it's before a particular subdomain or root domain, i.e : `user_created.mydomain.com`, `otheruser.mydomain.com` like the  `username.github.io`
 
 We use the `Subdomain` and `WildcardSubdomain` methods of an `iris.Party` or `iris.Application` to register subdomains.