diff --git a/apps/files_sharing/tests/externalstorage.php b/apps/files_sharing/tests/externalstorage.php
index 1258148af53d9c33f2c0fd3e8a8a674832ac1f7e..2e93afa1987437a189485f4ae5bc4b35790dfe1a 100644
--- a/apps/files_sharing/tests/externalstorage.php
+++ b/apps/files_sharing/tests/externalstorage.php
@@ -65,6 +65,7 @@ class Test_Files_Sharing_External_Storage extends \PHPUnit_Framework_TestCase {
 	 * @dataProvider optionsProvider
 	 */
 	public function testStorageMountOptions($inputUri, $baseUri) {
+		$certificateManager = \OC::$server->getCertificateManager();
 		$storage = new TestSharingExternalStorage(
 			array(
 				'remote' => $inputUri,
@@ -72,7 +73,8 @@ class Test_Files_Sharing_External_Storage extends \PHPUnit_Framework_TestCase {
 				'mountpoint' => 'remoteshare',
 				'token' => 'abcdef',
 				'password' => '',
-				'manager' => null
+				'manager' => null,
+				'certificateManager' => $certificateManager
 			)
 		);
 		$this->assertEquals($baseUri, $storage->getBaseUri());