diff --git a/Types.md b/Types.md
index 2d77d42..a6b853d 100644
--- a/Types.md
+++ b/Types.md
@@ -1,10 +1,11 @@
 ### Category
 
 `sponsor`
-`intro`
-`outro`
 `selfpromo`
 `interaction`
+`intro`
+`outro`
+`preview`
 `music_offtopic`
 
 ### Service