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 --- b/teensy_loader_cli.c.orig	2016-04-07 02:05:41.000000000 +0200
+++ a/teensy_loader_cli.c	2016-05-29 14:32:44.861930222 +0200
@@ -37,14 +37,15 @@
 {
 	if(err != NULL) fprintf(stderr, "%s\n\n", err);
 	fprintf(stderr,
-		"Usage: teensy_loader_cli --mcu=<MCU> [-w] [-h] [-n] [-b] [-v] <file.hex>\n"
+		"Usage: teensy-loader-cli --mcu=<MCU> [-h] [-w] [-n] [-b] [-v] <file.hex>\n"
+		"\t-h : Print this help message\n"
 		"\t-w : Wait for device to appear\n"
 		"\t-r : Use hard reboot if device not online\n"
 		"\t-s : Use soft reboot if device not online (Teensy3.x only)\n"
 		"\t-n : No reboot after programming\n"
 		"\t-b : Boot only, do not program\n"
 		"\t-v : Verbose output\n"
-		"\nUse `teensy_loader_cli --list-mcus` to list supported MCUs.\n"
+		"\nUse `teensy-loader-cli --list-mcus` to list supported MCUs.\n"
 		"\nFor more information, please visit:\n"
 		"http://www.pjrc.com/teensy/loader_cli.html\n");
 	exit(1);
@@ -1081,6 +1082,7 @@
 	int i;
 	for(i=1; arg[i]; i++) {
 		switch(arg[i]) {
+			case 'h': usage(NULL); break;
 			case 'w': wait_for_device_to_appear = 1; break;
 			case 'r': hard_reboot_device = 1; break;
 			case 's': soft_reboot_device = 1; break;