diff --git a/Neos.Media.Browser/Classes/Controller/UsageController.php b/Neos.Media.Browser/Classes/Controller/UsageController.php
index b7aa945742..e1ff71bd6a 100644
--- a/Neos.Media.Browser/Classes/Controller/UsageController.php
+++ b/Neos.Media.Browser/Classes/Controller/UsageController.php
@@ -128,7 +128,7 @@ public function relatedNodesAction(AssetInterface $asset)
             $workspacePermissions = $this->contentRepositoryAuthorizationService->getWorkspacePermissions($currentContentRepositoryId, $usage->getWorkspaceName(), $this->securityContext->getRoles(), $this->userService->getBackendUser()?->getId());
             $workspace = $contentRepository->findWorkspaceByName($usage->getWorkspaceName());
 
-            $inaccessibleRelation['label'] = $this->getLabelForInaccessibleWorkspace($workspace);
+            $inaccessibleRelation['label'] = $workspace && $this->getLabelForInaccessibleWorkspace($workspace);
             $inaccessibleRelation['nodeIdentifier'] = $usage->getNodeAggregateId()->value;
             $inaccessibleRelation['workspaceName'] = $usage->getWorkspaceName()->value;
             $inaccessibleRelation['workspace'] = $workspace;