diff --git a/lib/router.php b/lib/router.php
index 4a2891d..710c41c 100644
--- a/lib/router.php
+++ b/lib/router.php
@@ -38,8 +38,14 @@ function initRouter(): bool
 
 
     if ($needsRedirect) {
+        if(!empty($routerRequest["subdomain"])){
+            $sub_domain = $routerRequest["subdomain"] . ".";
+        }
+        else{
+            $sub_domain = "";
+        }
         $redirectAddress = $routerConfig["protocol"] .
-            $routerRequest["subdomain"] . "." .
+            $sub_domain .
             $routerRequest["domain"] . "." .
             $routerRequest["tld"] . "/" .
             $routerRequest["page_name"];