1 files changed, 4 insertions, 2 deletions
diff --git a/a8xd.c b/a8xd.c
index f051c4b..e08e260 100644
--- a/a8xd.c
+++ b/a8xd.c
@@ -33,7 +33,8 @@ void die(const char *msg) {
 }
 
 void print_help(void) {
-	printf("Usage: %s [-v] [file ...]\n", self);
+	printf("Usage: %s [-i] [-l limit] [-m] [-o offset] [-s [-]seek] [-u] [-v] [file]\n", self);
+	printf("With no [file], or '-', reads from stdin.\n");
 }
 
 int parse_num_arg(const char *arg) {
@@ -244,9 +245,10 @@ int main(int argc, char **argv) {
 		exit(0);
 	}
 
-	while( (opt = getopt(argc, argv, "vimus:o:l:")) != -1) {
+	while( (opt = getopt(argc, argv, "vhimus:o:l:")) != -1) {
 		switch(opt) {
 			case 'v': verbose = 1; break;
+			case 'h': print_help(); exit(0); break;
 			case 'i': table = ics2utf; break;
 			case 'm': color = 0; break;
 			case 'u': word_format = "%04X"; byte_format = "%02X"; break;