diff --git a/lib/controller/accountscontroller.php b/lib/controller/accountscontroller.php
index e86ef061..ba5dea2f 100644
--- a/lib/controller/accountscontroller.php
+++ b/lib/controller/accountscontroller.php
@@ -45,7 +45,6 @@
 use OCP\Files\File;
 use OCP\Files\Folder;
 use OCP\IL10N;
-use OCP\ILogger;
 use OCP\IRequest;
 use OCP\Security\ICrypto;
 
@@ -63,7 +62,7 @@ class AccountsController extends Controller {
 	/** @var Folder */
 	private $userFolder;
 
-	/** @var ILogger */
+	/** @var Logger */
 	private $logger;
 
 	/** @var IL10N */
@@ -233,7 +232,7 @@ public function create($accountName, $emailAddress, $password,
 					['data' => ['id' => $newAccount->getId()]],
 					Http::STATUS_CREATED);
 			}
-		} catch (\Exception $ex) {
+		} catch (Exception $ex) {
 			$this->logger->error('Creating account failed: ' . $ex->getMessage());
 			return new JSONResponse(
 				array('message' => $this->l10n->t('Creating account failed: ') . $ex->getMessage()),
diff --git a/lib/service/logger.php b/lib/service/logger.php
index 3bbfafbb..a9d37d2a 100644
--- a/lib/service/logger.php
+++ b/lib/service/logger.php
@@ -24,7 +24,7 @@
 
 use OCP\ILogger;
 
-class Logger implements ILogger {
+class Logger {
 
 	/** @var array */
 	private $context;
@@ -103,14 +103,14 @@ public function debug($message, array $context = []) {
 	/**
 	 * @inheritdoc
 	 */
-	public function log($level, $message, array $context = array()) {
+	public function log($level, $message, array $context = []) {
 		$this->logger->log($level, $message, array_merge($this->context, $context));
 	}
 
 	/**
 	 * @inheritdoc
 	 */
-	public function logException(\Exception $exception, array $context = array()) {
+	public function logException($exception, array $context = []) {
 		$this->logger->logException($exception, array_merge($this->context, $context));
 	}