diff --git a/Controller/BackendController.php b/Controller/BackendController.php
index cbc7f4b..7c70cfc 100644
--- a/Controller/BackendController.php
+++ b/Controller/BackendController.php
@@ -261,17 +261,17 @@ final class BackendController extends Controller
 
         if ($request->getData('ptype') === 'p') {
             $view->setData('costcenter',
-                CostCenterMapper::withConditional('language', $response->getHeader()->getL11n()->getLanguage())
+                CostCenterMapper::withConditional('language', $response->getLanguage())
                     ::getBeforePivot((int) ($request->getData('id') ?? 0), null, 25)
             );
         } elseif ($request->getData('ptype') === 'n') {
             $view->setData('costcenter',
-                CostCenterMapper::withConditional('language', $response->getHeader()->getL11n()->getLanguage())
+                CostCenterMapper::withConditional('language', $response->getLanguage())
                     ::getAfterPivot((int) ($request->getData('id') ?? 0), null, 25)
             );
         } else {
             $view->setData('costcenter',
-                CostCenterMapper::withConditional('language', $response->getHeader()->getL11n()->getLanguage())
+                CostCenterMapper::withConditional('language', $response->getLanguage())
                     ::getAfterPivot(0, null, 25)
             );
         }
@@ -299,17 +299,17 @@ final class BackendController extends Controller
 
         if ($request->getData('ptype') === 'p') {
             $view->setData('costobject',
-                CostObjectMapper::withConditional('language', $response->getHeader()->getL11n()->getLanguage())
+                CostObjectMapper::withConditional('language', $response->getLanguage())
                     ::getBeforePivot((int) ($request->getData('id') ?? 0), null, 25)
             );
         } elseif ($request->getData('ptype') === 'n') {
             $view->setData('costobject',
-                CostObjectMapper::withConditional('language', $response->getHeader()->getL11n()->getLanguage())
+                CostObjectMapper::withConditional('language', $response->getLanguage())
                     ::getAfterPivot((int) ($request->getData('id') ?? 0), null, 25)
             );
         } else {
             $view->setData('costobject',
-                CostObjectMapper::withConditional('language', $response->getHeader()->getL11n()->getLanguage())
+                CostObjectMapper::withConditional('language', $response->getLanguage())
                     ::getAfterPivot(0, null, 25)
             );
         }