diff --git a/library/Icinga/Protocol/Ldap/Connection.php b/library/Icinga/Protocol/Ldap/Connection.php
index f5ca017f3..dce492817 100644
--- a/library/Icinga/Protocol/Ldap/Connection.php
+++ b/library/Icinga/Protocol/Ldap/Connection.php
@@ -143,7 +143,7 @@ class Connection implements Selectable
     public function fetchOne($query, $fields = array())
     {
         $row = (array) $this->fetchRow($query, $fields);
-        return array_shift($row);
+        return array_shift($row) ?: false;
     }
 
     public function hasDN($dn)