diff --git a/tools/ant-txt/ant-txt.c b/tools/ant-txt/ant-txt.c
index 9c03c4d..bdd95f0 100644
--- a/tools/ant-txt/ant-txt.c
+++ b/tools/ant-txt/ant-txt.c
@@ -14,6 +14,7 @@
 #include <stdint.h>
 #include <stdlib.h>
 #include <stdio.h>
+#include <unistd.h>
 #include <assert.h>
 
 #include <libtxt/libtxt.h>
@@ -23,14 +24,30 @@
 #define	H	16
 
 
+static void usage(const char *name)
+{
+	fprintf(stderr, "usage: %s [-F font_dir ...] [text]\n", name);
+	exit(1);
+}
+
+
 int main(int argc, char **argv)
 {
 	struct edit *edits = NULL, **last = &edits;
 	uint8_t *canvas;
 	const char *err;
 	int i, x, y;
+	int c;
 
-	for (i = 1; i != argc; i++) {
+	while ((c = getopt(argc, argv, "F:")) != EOF)
+		switch (c) {
+		case 'F':
+			add_font_dir(optarg);
+			break;
+		default:
+			usage(*argv);
+		}
+	for (i = optind; i != argc; i++) {
 		while (*last)
 			last = &(*last)->next;
 		if (edits) {