diff --git a/mxssb.c b/mxssb.c
index eee6dc41e547d3f38d79ae056579d103a83b8e9f..c7f59d4b9b043e9c72bfd05c1f95ba07dd8c0a99 100644
--- a/mxssb.c
+++ b/mxssb.c
@@ -523,7 +523,14 @@ static int sb_tag_to_command(struct sb_cmd_ctx *cctx, char *line)
 		break;
 	case 'T':	/* ROM_TAG_CMD */
 		cmd->header.tag		= ROM_TAG_CMD;
-		cmd->header.flags	= 1;	// HACK
+		tok = strtok(NULL, " ");
+		if (!tok)
+			break;
+
+		/* Check for "LAST" flag. */
+		if ((strlen(tok) == 4) && !strncmp(tok, "LAST", 3))
+			cmd->header.flags = ROM_TAG_CMD_FLAG_ROM_LAST_TAG;
+
 		/* Rest of TAG instruction is filled later. */
 		break;
 	case 'L':	/* ROM_LOAD_CMD */