diff --git a/apps/oauth2/lib/Db/AccessToken.php b/apps/oauth2/lib/Db/AccessToken.php
index 2027371892588..a568232a2e056 100644
--- a/apps/oauth2/lib/Db/AccessToken.php
+++ b/apps/oauth2/lib/Db/AccessToken.php
@@ -40,11 +40,10 @@ class AccessToken extends Entity {
 	protected $tokenCount;
 
 	public function __construct() {
-		$this->addType('id', Types::INTEGER);
 		$this->addType('tokenId', Types::INTEGER);
 		$this->addType('clientId', Types::INTEGER);
-		$this->addType('hashedCode', 'string');
-		$this->addType('encryptedToken', 'string');
+		$this->addType('hashedCode', Types::STRING);
+		$this->addType('encryptedToken', Types::STRING);
 		$this->addType('codeCreatedAt', Types::INTEGER);
 		$this->addType('tokenCount', Types::INTEGER);
 	}
diff --git a/apps/oauth2/lib/Db/Client.php b/apps/oauth2/lib/Db/Client.php
index b121951993cd4..b53bcab28c241 100644
--- a/apps/oauth2/lib/Db/Client.php
+++ b/apps/oauth2/lib/Db/Client.php
@@ -32,10 +32,9 @@ class Client extends Entity {
 	protected $secret;
 
 	public function __construct() {
-		$this->addType('id', Types::INTEGER);
-		$this->addType('name', 'string');
-		$this->addType('redirectUri', 'string');
-		$this->addType('clientIdentifier', 'string');
-		$this->addType('secret', 'string');
+		$this->addType('name', Types::STRING);
+		$this->addType('redirectUri', Types::STRING);
+		$this->addType('clientIdentifier', Types::STRING);
+		$this->addType('secret', Types::STRING);
 	}
 }