diff --git a/src/types/login/ClientData.php b/src/types/login/ClientData.php
index b5279f40..6b8edea4 100644
--- a/src/types/login/ClientData.php
+++ b/src/types/login/ClientData.php
@@ -105,6 +105,9 @@ final class ClientData{
 	/** @required */
 	public string $PlatformOnlineId;
 
+	/** >= PROTOCOL_748 */
+	public string $PlatformType;
+
 	public string $PlatformUserId = ""; //xbox-only, apparently
 
 	/** @required */