diff --git a/wayneko.c b/wayneko.c
index 1ee6bcb..4dfb36e 100644
--- a/wayneko.c
+++ b/wayneko.c
@@ -32,6 +32,9 @@ const char usage[] =
 	"  --background-colour 0xRRGGBB[AA]\n"
 	"  --outline-colour    0xRRGGBB[AA]\n"
 	"  --type              neko|inu|random\n"
+        "  --idle-sleep        num\n"
+        "  --sleepiness        num\n"
+        "  --sleepiness-night  num\n"
 	"  --layer             background|bottom|top|overlay\n"
 	"  --follow-pointer    true|false\n"
 	"  --survive-close\n"