diff --git a/FM2.html b/FM2.html
index d0ebcc71..2ac8553b 100644
--- a/FM2.html
+++ b/FM2.html
@@ -47,6 +47,7 @@
 		<li>rerecordCount (optional) - the rerecord count</li>
 		<li>palFlag (bool) (optional) - true if the movie uses pal timing</li>
 		<li>fourscore (bool) (*note C) - true if a fourscore was used</li>
+		<li>FDS (optional) - true if the movie was recording on a Famicom Disk System (FDS) game</li>
 		<li>port0, port1 (*note C) - indicates the types of input devices. Supported values are:
  	         <ul>
 	 	     	<li>SI_GAMEPAD = 1</li>