diff --git a/powerdebug.c b/powerdebug.c
index 164126d..dc2c9bf 100644
--- a/powerdebug.c
+++ b/powerdebug.c
@@ -35,13 +35,14 @@
 	printf("Usage: powerdebug [OPTIONS]\n");
 	printf("\n");
 	printf("powerdebug -d [ -r ] [ -s ] [ -c [ -p <clock-name> ] ] "
-		"[ -v ]\n");
-	printf("powerdebug [ -r | -s | -c ]\n");
+		"[ -g ] [ -v ]\n");
+	printf("powerdebug [ -r | -s | -c | -g]\n");
 	printf("  -r, --regulator 	Show regulator information\n");
 	printf("  -s, --sensor		Show sensor information\n");
 	printf("  -c, --clock		Show clock information\n");
 	printf("  -p, --findparents	Show all parents for a particular"
 		" clock\n");
+	printf("  -g, --gpio		Show gpio information\n");
 	printf("  -t, --time		Set ticktime in seconds (eg. 10.0)\n");
 	printf("  -d, --dump		Dump information once (no refresh)\n");
 	printf("  -v, --verbose		Verbose mode (use with -r and/or"