diff --git a/config/app/custom_rdap_servers.example.yaml b/config/app/custom_rdap_servers.example.yaml
index 4f9b11f..4d65c71 100644
--- a/config/app/custom_rdap_servers.example.yaml
+++ b/config/app/custom_rdap_servers.example.yaml
@@ -20,7 +20,7 @@
     "publication": "1970-01-01T00:00:00Z",
 
     "services": [
-        [ [ "" ],             [ "https://rdap.iana.org/" ] ], # If you want to make RDAP queries to get TLD information from IANA
+        [ [ "." ],             [ "https://rdap.iana.org/" ] ], # If you want to make RDAP queries to get TLD information from IANA
         [ [ "ad" ],            [ "https://rdap.nic.ad/" ] ],
         [ [ "ae" ],            [ "https://rdap.nic.ae/" ] ],
         [ [ "ki" ],            [ "https://rdap.nic.ki/" ] ],
diff --git a/src/Service/RDAPService.php b/src/Service/RDAPService.php
index 6be7534..64c80d3 100644
--- a/src/Service/RDAPService.php
+++ b/src/Service/RDAPService.php
@@ -173,7 +173,7 @@ readonly class RDAPService
     private function getTld(string $domain): Tld
     {
         if (!str_contains($domain, '.')) {
-            $tldEntity = $this->tldRepository->findOneBy(['tld' => '']);
+            $tldEntity = $this->tldRepository->findOneBy(['tld' => '.']);
 
             if (null == $tldEntity) {
                 throw new NotFoundHttpException("The requested TLD $domain is not yet supported, please try again with another one");