diff --git a/app/controllers/api/proxy.php b/app/controllers/api/proxy.php
index 8cc765c2ce..442bab740d 100644
--- a/app/controllers/api/proxy.php
+++ b/app/controllers/api/proxy.php
@@ -42,7 +42,10 @@ App::post('/v1/proxy/rules')
     ->inject('dbForProject')
     ->action(function (string $domain, string $resourceType, string $resourceId, Response $response, Document $project, Event $events, Database $dbForConsole, Database $dbForProject) {
         $mainDomain = App::getEnv('_APP_DOMAIN', '');
-        if ($domain === $mainDomain || $domain === 'localhost' || $domain === APP_HOSTNAME_INTERNAL) {
+        if ($domain === $mainDomain) {
+            throw new Exception(Exception::GENERAL_ARGUMENT_INVALID, 'You cannot assign your main domain to specific resource. Please use subdomain or a different domain.');
+        }
+        if ($domain === 'localhost' || $domain === APP_HOSTNAME_INTERNAL) {
             throw new Exception(Exception::GENERAL_ARGUMENT_INVALID, 'This domain name is not allowed. Please pick another one.');
         }