diff --git a/dos_bin/MT32-PI.TXT b/dos_bin/MT32-PI.TXT
index ef716a5..add88d4 100644
--- a/dos_bin/MT32-PI.TXT
+++ b/dos_bin/MT32-PI.TXT
@@ -17,7 +17,7 @@ OPTIONS:
   -h/--help: Print this info.
   -v/--verbose: Be verbose about what is going on.
   -r/--reboot: Reboot the Pi. Will block for a few secs to give it time.
-  -p/--port [ADDR]: Set the port address of the MPU401 interface. Default: 330.
+  -p [ADDR]: Set the port address of the MPU401 interface. Default: 330.
   -m/--mt32: Switch mt32-pi to MT-32 mode.
   -g/--fluidsynth: Switch mt32-pi to FluidSynth mode.
   -b/--romset [old, new, cm32l]: Switch MT-32 romset.