diff --git a/Routing-subdomains.md b/Routing-subdomains.md
index 2fc2424..b7ba46a 100644
--- a/Routing-subdomains.md
+++ b/Routing-subdomains.md
@@ -41,6 +41,10 @@ admin.Get("/", func(ctx iris.Context) {
 admin.Get("/hey", func(ctx iris.Context) {
     ctx.Writef("HEY FROM admin.mydomain.com/hey")
 })
+
+// [other routes here...]
+
+app.Run(iris.Addr("mydomain.com:80"))
 ```
 
 For local development you'll have to edit your hosts, for example in windows operating system open the `C:\Windows\System32\Drivers\etc\hosts` file and append: