diff --git a/lib/private/Authentication/Token/DefaultTokenMapper.php b/lib/private/Authentication/Token/DefaultTokenMapper.php
index f4d979183e608f30a7deac80a91fb608734a8182..18adbe48d782806dda7e71a6c0a15ff7415b19ca 100644
--- a/lib/private/Authentication/Token/DefaultTokenMapper.php
+++ b/lib/private/Authentication/Token/DefaultTokenMapper.php
@@ -24,6 +24,7 @@ namespace OC\Authentication\Token;
 
 use OCP\AppFramework\Db\DoesNotExistException;
 use OCP\AppFramework\Db\Mapper;
+use OCP\DB\QueryBuilder\IQueryBuilder;
 use OCP\IDBConnection;
 
 class DefaultTokenMapper extends Mapper {
@@ -38,24 +39,25 @@ class DefaultTokenMapper extends Mapper {
 	 * @param string $token
 	 */
 	public function invalidate($token) {
-		$sql = 'DELETE FROM `' . $this->getTableName() . '` '
-			. 'WHERE `token` = ?';
-		return $this->execute($sql, [
-				$token
-		]);
+		$qb = $this->db->getQueryBuilder();
+		$qb->delete('authtoken')
+			->andWhere($qb->expr()->eq('token', $qb->createParameter('token')))
+			->setParameter('token', $token)
+			->execute();
 	}
 
 	/**
 	 * @param int $olderThan
 	 */
 	public function invalidateOld($olderThan) {
-		$sql = 'DELETE FROM `' . $this->getTableName() . '` '
-			. 'WHERE `last_activity` < ? '
-			. 'AND `type` = ?';
-		$this->execute($sql, [
-			$olderThan,
-			IToken::TEMPORARY_TOKEN,
-		]);
+		/* @var $qb IQueryBuilder */
+		$qb = $this->db->getQueryBuilder();
+		$qb->delete('authtoken')
+			->where($qb->expr()->lt('last_activity', $qb->createParameter('last_activity')))
+			->andWhere($qb->expr()->eq('type', $qb->createParameter('type')))
+			->setParameter('last_activity', $olderThan, IQueryBuilder::PARAM_INT)
+			->setParameter('type', IToken::TEMPORARY_TOKEN, IQueryBuilder::PARAM_INT)
+			->execute();
 	}
 
 	/**
@@ -66,12 +68,19 @@ class DefaultTokenMapper extends Mapper {
 	 * @return DefaultToken
 	 */
 	public function getToken($token) {
-		$sql = 'SELECT `id`, `uid`, `password`, `name`, `token`, `last_activity` '
-			. 'FROM `' . $this->getTableName() . '` '
-			. 'WHERE `token` = ?';
-		return $this->findEntity($sql, [
-				$token
-		]);
+		/* @var $qb IQueryBuilder */
+		$qb = $this->db->getQueryBuilder();
+		$result = $qb->select('id', 'uid', 'password', 'name', 'type', 'token', 'last_activity')
+			->from('authtoken')
+			->where($qb->expr()->eq('token', $qb->createParameter('token')))
+			->setParameter('token', $token)
+			->execute();
+
+		$data = $result->fetch();
+		if ($data === false) {
+			throw new DoesNotExistException('token does not exist');
+		}
+		return DefaultToken::fromRow($data);
 	}
 
 }
diff --git a/tests/lib/authentication/token/defaulttokenmappertest.php b/tests/lib/authentication/token/defaulttokenmappertest.php
index b77bf31aa485101acde35c744a213c2b70c1a64f..9a21e143fb406de1ce8a9ffad31d862e413ccb69 100644
--- a/tests/lib/authentication/token/defaulttokenmappertest.php
+++ b/tests/lib/authentication/token/defaulttokenmappertest.php
@@ -23,7 +23,9 @@
 namespace Test\Authentication\Token;
 
 use OC;
+use OC\Authentication\Token\DefaultToken;
 use OC\Authentication\Token\DefaultTokenMapper;
+use OC\Authentication\Token\IToken;
 use OCP\DB\QueryBuilder\IQueryBuilder;
 use Test\TestCase;
 
@@ -38,11 +40,13 @@ class DefaultTokenMapperTest extends TestCase {
 	/** @var DefaultTokenMapper */
 	private $mapper;
 	private $dbConnection;
+	private $time;
 
 	protected function setUp() {
 		parent::setUp();
 
-		$this->dbConnection = \OC::$server->getDatabaseConnection();
+		$this->dbConnection = OC::$server->getDatabaseConnection();
+		$this->time = time();
 		$this->resetDatabase();
 
 		$this->mapper = new DefaultTokenMapper($this->dbConnection);
@@ -56,24 +60,24 @@ class DefaultTokenMapperTest extends TestCase {
 			'password' => $qb->createNamedParameter('a75c7116460c082912d8f6860a850904|3nz5qbG1nNSLLi6V|c55365a0e54cfdfac4a175bcf11a7612aea74492277bba6e5d96a24497fa9272488787cb2f3ad34d8b9b8060934fce02f008d371df3ff3848f4aa61944851ff0'),
 			'name' => $qb->createNamedParameter('Firefox on Linux'),
 			'token' => $qb->createNamedParameter('9c5a2e661482b65597408a6bb6c4a3d1af36337381872ac56e445a06cdb7fea2b1039db707545c11027a4966919918b19d875a8b774840b18c6cbb7ae56fe206'),
-			'type' => $qb->createNamedParameter(OC\Authentication\Token\IToken::TEMPORARY_TOKEN),
-			'last_activity' => $qb->createNamedParameter(time() - 120, IQueryBuilder::PARAM_INT), // Two minutes ago
+			'type' => $qb->createNamedParameter(IToken::TEMPORARY_TOKEN),
+			'last_activity' => $qb->createNamedParameter($this->time - 120, IQueryBuilder::PARAM_INT), // Two minutes ago
 		])->execute();
 		$qb->insert('authtoken')->values([
 			'uid' => $qb->createNamedParameter('user2'),
 			'password' => $qb->createNamedParameter('971a337057853344700bbeccf836519f|UwOQwyb34sJHtqPV|036d4890f8c21d17bbc7b88072d8ef049a5c832a38e97f3e3d5f9186e896c2593aee16883f617322fa242728d0236ff32d163caeb4bd45e14ca002c57a88665f'),
 			'name' => $qb->createNamedParameter('Firefox on Android'),
 			'token' => $qb->createNamedParameter('1504445f1524fc801035448a95681a9378ba2e83930c814546c56e5d6ebde221198792fd900c88ed5ead0555780dad1ebce3370d7e154941cd5de87eb419899b'),
-			'type' => $qb->createNamedParameter(OC\Authentication\Token\IToken::TEMPORARY_TOKEN),
-			'last_activity' => $qb->createNamedParameter(time() - 60 * 60 * 24 * 3, IQueryBuilder::PARAM_INT), // Three days ago
+			'type' => $qb->createNamedParameter(IToken::TEMPORARY_TOKEN),
+			'last_activity' => $qb->createNamedParameter($this->time - 60 * 60 * 24 * 3, IQueryBuilder::PARAM_INT), // Three days ago
 		])->execute();
 		$qb->insert('authtoken')->values([
 			'uid' => $qb->createNamedParameter('user1'),
 			'password' => $qb->createNamedParameter('063de945d6f6b26862d9b6f40652f2d5|DZ/z520tfdXPtd0T|395f6b89be8d9d605e409e20b9d9abe477fde1be38a3223f9e508f979bf906e50d9eaa4dca983ca4fb22a241eb696c3f98654e7775f78c4caf13108f98642b53'),
 			'name' => $qb->createNamedParameter('Iceweasel on Linux'),
 			'token' => $qb->createNamedParameter('47af8697ba590fb82579b5f1b3b6e8066773a62100abbe0db09a289a62f5d980dc300fa3d98b01d7228468d1ab05c1aa14c8d14bd5b6eee9cdf1ac14864680c3'),
-			'type' => $qb->createNamedParameter(OC\Authentication\Token\IToken::TEMPORARY_TOKEN),
-			'last_activity' => $qb->createNamedParameter(time() - 120, IQueryBuilder::PARAM_INT), // Two minutes ago
+			'type' => $qb->createNamedParameter(IToken::TEMPORARY_TOKEN),
+			'last_activity' => $qb->createNamedParameter($this->time - 120, IQueryBuilder::PARAM_INT), // Two minutes ago
 		])->execute();
 	}
 
@@ -83,7 +87,6 @@ class DefaultTokenMapperTest extends TestCase {
 			->from('authtoken')
 			->execute()
 			->fetch();
-		print_r($result);
 		return (int) $result['count'];
 	}
 
@@ -104,7 +107,7 @@ class DefaultTokenMapperTest extends TestCase {
 	}
 
 	public function testInvalidateOld() {
-		$olderThan = time() - 60 * 60; // One hour
+		$olderThan = $this->time - 60 * 60; // One hour
 
 		$this->mapper->invalidateOld($olderThan);
 
@@ -113,10 +116,20 @@ class DefaultTokenMapperTest extends TestCase {
 
 	public function testGetToken() {
 		$token = '1504445f1524fc801035448a95681a9378ba2e83930c814546c56e5d6ebde221198792fd900c88ed5ead0555780dad1ebce3370d7e154941cd5de87eb419899b';
+		$token = new DefaultToken();
+		$token->setUid('user2');
+		$token->setPassword('971a337057853344700bbeccf836519f|UwOQwyb34sJHtqPV|036d4890f8c21d17bbc7b88072d8ef049a5c832a38e97f3e3d5f9186e896c2593aee16883f617322fa242728d0236ff32d163caeb4bd45e14ca002c57a88665f');
+		$token->setName('Firefox on Android');
+		$token->setToken('1504445f1524fc801035448a95681a9378ba2e83930c814546c56e5d6ebde221198792fd900c88ed5ead0555780dad1ebce3370d7e154941cd5de87eb419899b');
+		$token->setType(IToken::TEMPORARY_TOKEN);
+		$token->setLastActivity($this->time - 60 * 60 * 24 * 3);
 
-		$dbToken = $this->mapper->getToken($token);
+		$dbToken = $this->mapper->getToken($token->getToken());
 
-		$this->assertNotNull($dbToken);
+		$token->setId($dbToken->getId()); // We don't know the ID
+		$token->resetUpdatedFields();
+
+		$this->assertEquals($token, $dbToken);
 	}
 
 	/**