diff --git a/lib/Controller/CardApiController.php b/lib/Controller/CardApiController.php
index 64d48ec71..b82030582 100644
--- a/lib/Controller/CardApiController.php
+++ b/lib/Controller/CardApiController.php
@@ -27,8 +27,7 @@
  use OCP\AppFramework\Http;
  use OCP\AppFramework\Http\DataResponse;
  use OCP\IRequest;
-
- use OCA\Deck\Controller\Helper\ApiHelper;
+ 
  use OCA\Deck\Service\BoardService;
  use OCA\Deck\Service\StackService;
  use OCA\Deck\Service\CardService;
@@ -39,15 +38,13 @@
  * @package OCA\Deck\Controller
  */
 class CardApiController extends ApiController {
-	private $cardService;
-	private $boardService;
-	private $stackService;
+	private $cardService;		
 	private $userId;	
 
 	/**
 	 * @param string $appName
 	 * @param IRequest $request
-	 * @param CardService $service
+	 * @param CardService $cardService
 	 * @param $userId
 	 */
 	public function __construct($appName, IRequest $request, CardService $cardService, $userId) {
diff --git a/lib/Controller/Helper/ApiHelper.php b/lib/Controller/Helper/ApiHelper.php
deleted file mode 100644
index c19baaaf8..000000000
--- a/lib/Controller/Helper/ApiHelper.php
+++ /dev/null
@@ -1,49 +0,0 @@
-<?php
-
-/**
- * @copyright Copyright (c) 2018 Ryan Fletcher <ryan.fletcher@codepassion.ca>
- *
- * @author Ryan Fletcher <ryan.fletcher@codepassion.ca>
- *
- * @license GNU AGPL version 3 or any later version
- *
- *  This program is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU Affero General Public License as
- *  published by the Free Software Foundation, either version 3 of the
- *  License, or (at your option) any later version.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU Affero General Public License for more details.
- *
- *  You should have received a copy of the GNU Affero General Public License
- *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
- *
- */
-
-namespace OCA\Deck\Controller\Helper;
-
-use OCP\AppFramework\Http;
-
-class ApiHelper {
-
-	public static function entityHasError($entityId, $entityName, $service) {				
-		if (is_numeric($entityId) === false) {
-			$error['message'] = $entityName . ' id must be a number';
-			$error['status'] = HTTP::STATUS_BAD_REQUEST;
-			return $error;
-		}
-
-		$entity = $service->find($entityId);
-
-		if ($entity === false || $entity === null) {
-			$error['message'] = $entityName . ' not found';
-			$error['status'] = HTTP::STATUS_NOT_FOUND;
-			return $error;
-		}
-
-		return false;
-	}	
-
-}
\ No newline at end of file
diff --git a/lib/Controller/LabelApiController.php b/lib/Controller/LabelApiController.php
index 09694d17f..72643c963 100644
--- a/lib/Controller/LabelApiController.php
+++ b/lib/Controller/LabelApiController.php
@@ -44,7 +44,7 @@ class LabelApiController extends ApiController {
 	/**
 	 * @param string $appName
 	 * @param IRequest $request
-	 * @param LabelService $service
+	 * @param LabelService $labelService
 	 * @param $userId
 	 */
 	public function __construct($appName, IRequest $request, LabelService $labelService, $userId) {