diff --git a/interface/lib/classes/tools_sites.inc.php b/interface/lib/classes/tools_sites.inc.php
index 94c6d787875c28bec6d2b011c07454912f0eb036..b2881f57cc7e28a96554b8f585d17873100035fe 100644
--- a/interface/lib/classes/tools_sites.inc.php
+++ b/interface/lib/classes/tools_sites.inc.php
@@ -157,7 +157,7 @@ class tools_sites {
 				$field = "domain";
 				$select = $field;
 			}
-			$sql .= " domain NOT IN (SELECT $select FROM ?? WHERE $field = ?) AND";
+			$sql .= " domain NOT IN (SELECT $select FROM ?? WHERE $field != ?) AND";
 		}
 		if ($_SESSION["s"]["user"]["typ"] == 'admin') {
 			$sql .= " 1";
diff --git a/interface/web/sites/web_childdomain_edit.php b/interface/web/sites/web_childdomain_edit.php
index 2377ad288acf3e353e2bc7e5c288ed43c826fe12..465356402bbb09d8cddfd5f3126dff2f7bd172ed 100644
--- a/interface/web/sites/web_childdomain_edit.php
+++ b/interface/web/sites/web_childdomain_edit.php
@@ -105,7 +105,7 @@ class page_action extends tform_actions {
 			/*
 			 * The domain-module is in use.
 			*/
-			$domains = $app->tools_sites->getDomainModuleDomains($this->_vhostdomain_type == 'subdomain' ? null : "web_domain", $this->dataRecord["domain"]);
+			$domains = $app->tools_sites->getDomainModuleDomains($this->_vhostdomain_type == 'subdomain' ? null : "web_domain");
 			$domain_select = '';
 			$selected_domain = '';
 			if(is_array($domains) && sizeof($domains) > 0) {