diff --git a/robots/mtp/mtp.c b/robots/mtp/mtp.c
index 8ae02f226b307af5f1f2c909a9c6ea93262ced9d..2a723c2d083497c62962f8a19dd3be84573f1999 100755
--- a/robots/mtp/mtp.c
+++ b/robots/mtp/mtp.c
@@ -912,7 +912,7 @@ void mtp_print_packet(FILE *file, struct mtp_packet *mp)
     
   case MTP_COMMAND_STOP:
     fprintf(file,
-	    " opcode:\tupdate-id\n"
+	    " opcode:\tcommand-stop\n"
 	    "  commid:\t%d\n"
 	    "  id:\t%d\n",
 	    mp->data.command_stop->command_id,