diff --git a/doc/da65.sgml b/doc/da65.sgml
index 94fbfbd29..b72cd9b66 100644
--- a/doc/da65.sgml
+++ b/doc/da65.sgml
@@ -118,11 +118,13 @@ Here is a description of all the command line options:
   <item>65816
   <item>huc6280
   <item>4510
+  <item>m740
   </itemize>
 
   6502x is for the NMOS 6502 with unofficial opcodes. 6502dtv is for the
   emulated CPU of the C64DTV device. huc6280 is the CPU of the PC engine.
-  4510 is the CPU of the Commodore C65. 65816 is the CPU of the SNES.
+  4510 is the CPU of the Commodore C65. 65816 is the CPU of the SNES. M740 is a
+  Microcontroller by Mitsubishi.
 
 
   <label id="option--formfeeds">