diff --git a/application/Api/v1/AddressdbApicontroller.php b/application/Api/v1/AddressdbApicontroller.php
index abf1b044c..4555701b3 100644
--- a/application/Api/v1/AddressdbApicontroller.php
+++ b/application/Api/v1/AddressdbApicontroller.php
@@ -506,7 +506,7 @@ class AddressdbApicontroller extends mfBaseApicontroller {
       $format = "tree";
     }
     
-    if(!$search_street) {
+    if(!$search_street && !$search_cluster_id) {
       return mfResponse::BadRequest(['message' => "Searchstring cannot be empty!"]);
     }
     
@@ -538,7 +538,7 @@ class AddressdbApicontroller extends mfBaseApicontroller {
       $where .= " AND Hausnummer.netzgebiet_id IN (".implode(",", $this->filter_salescluster_ids).")";
     }
     if($search_cluster_id) {
-      $where .= " AND netzgebiet_extref='$search_cluster_idh'";
+      $where .= " AND Netzgebiet.extref='$search_cluster_id'";
     }
     //echo $where;
     //var_dump($this->filter_salescluster_ids);exit;