diff --git a/apps/files_external/controller/userglobalstoragescontroller.php b/apps/files_external/controller/userglobalstoragescontroller.php
index b77e23104e4..c6f777763e8 100644
--- a/apps/files_external/controller/userglobalstoragescontroller.php
+++ b/apps/files_external/controller/userglobalstoragescontroller.php
@@ -65,7 +65,7 @@ class UserGlobalStoragesController extends StoragesController {
 	 * @NoAdminRequired
 	 */
 	public function index() {
-		$storages = $this->service->getAllStorages();
+		$storages = $this->service->getUniqueStorages();
 
 		// remove configuration data, this must be kept private
 		foreach ($storages as $storage) {