diff --git a/core/dbobject.class.php b/core/dbobject.class.php
index 8e5dcbe6b..7a971794d 100644
--- a/core/dbobject.class.php
+++ b/core/dbobject.class.php
@@ -10,6 +10,7 @@ use Combodo\iTop\Service\Events\EventException;
 use Combodo\iTop\Service\Events\EventService;
 use Combodo\iTop\Service\Events\EventServiceLog;
 use Combodo\iTop\Service\Module\ModuleService;
+use Combodo\iTop\Service\SummaryCard\SummaryCardService;
 use Combodo\iTop\Service\TemporaryObjects\TemporaryObjectManager;
 
 /**
diff --git a/sources/Controller/Base/Layout/ObjectController.php b/sources/Controller/Base/Layout/ObjectController.php
index 83770fcd5..aa2beeda5 100644
--- a/sources/Controller/Base/Layout/ObjectController.php
+++ b/sources/Controller/Base/Layout/ObjectController.php
@@ -30,7 +30,7 @@ use iTopWebPage;
 use JsonPage;
 use MetaModel;
 use SecurityException;
-use SummaryCardService;
+use Combodo\iTop\Service\SummaryCard\SummaryCardService;
 use UserRights;
 use utils;
 
diff --git a/sources/Service/SummaryCard/SummaryCardService.php b/sources/Service/SummaryCard/SummaryCardService.php
index c5d49bab4..46c4fd44a 100644
--- a/sources/Service/SummaryCard/SummaryCardService.php
+++ b/sources/Service/SummaryCard/SummaryCardService.php
@@ -6,8 +6,11 @@
 
 namespace Combodo\iTop\Service\SummaryCard;
 
+use appUserPreferences;
 use Combodo\iTop\Core\MetaModel\FriendlyNameType;
 use Combodo\iTop\Service\Router\Router;
+use MetaModel;
+use UserRights;
 
 /**
  * Class SummaryCardService