diff --git a/application/tables/IcingaHostAppliedForServiceTable.php b/application/tables/IcingaHostAppliedForServiceTable.php
index a6b59c82..cb74e49c 100644
--- a/application/tables/IcingaHostAppliedForServiceTable.php
+++ b/application/tables/IcingaHostAppliedForServiceTable.php
@@ -6,8 +6,9 @@ use Icinga\Data\DataArray\ArrayDatasource;
 use Icinga\Module\Director\CustomVariable\CustomVariableDictionary;
 use Icinga\Module\Director\Objects\IcingaHost;
 use Icinga\Module\Director\Web\Table\QuickTable;
+use ipl\Html\ValidHtml;
 
-class IcingaHostAppliedForServiceTable extends QuickTable
+class IcingaHostAppliedForServiceTable extends QuickTable implements ValidHtml
 {
     protected $title;
 
diff --git a/application/tables/IcingaHostAppliedServicesTable.php b/application/tables/IcingaHostAppliedServicesTable.php
index 379245e4..f509eef1 100644
--- a/application/tables/IcingaHostAppliedServicesTable.php
+++ b/application/tables/IcingaHostAppliedServicesTable.php
@@ -7,8 +7,9 @@ use Icinga\Data\Filter\Filter;
 use Icinga\Module\Director\Objects\HostApplyMatches;
 use Icinga\Module\Director\Objects\IcingaHost;
 use Icinga\Module\Director\Web\Table\QuickTable;
+use ipl\Html\ValidHtml;
 
-class IcingaHostAppliedServicesTable extends QuickTable
+class IcingaHostAppliedServicesTable extends QuickTable implements ValidHtml
 {
     protected $title;
 
diff --git a/application/tables/IcingaHostServiceTable.php b/application/tables/IcingaHostServiceTable.php
index 38e61eba..4e349676 100644
--- a/application/tables/IcingaHostServiceTable.php
+++ b/application/tables/IcingaHostServiceTable.php
@@ -4,8 +4,9 @@ namespace Icinga\Module\Director\Tables;
 
 use Icinga\Module\Director\Objects\IcingaHost;
 use Icinga\Module\Director\Web\Table\QuickTable;
+use ipl\Html\ValidHtml;
 
-class IcingaHostServiceTable extends QuickTable
+class IcingaHostServiceTable extends QuickTable implements ValidHtml
 {
     protected $title;