diff --git a/app/assets/javascripts/player/vt.js.coffee b/app/assets/javascripts/player/vt.js.coffee
index 83e690e..cf911dd 100644
--- a/app/assets/javascripts/player/vt.js.coffee
+++ b/app/assets/javascripts/player/vt.js.coffee
@@ -250,6 +250,8 @@ class AsciiIo.VT
         @setScrollRegion @n or 0, @m or @lines - 1
       when "^"
         # reserved
+        # Privacy Message (password verification), terminated by ST
+        # TODO
       else
         throw "no handler for CSI term: " + term