diff --git a/src/main.zig b/src/main.zig
index 7847bd3..502322d 100644
--- a/src/main.zig
+++ b/src/main.zig
@@ -22,7 +22,8 @@ pub fn main() !void {
                 \\Usage: bat-alert [options]
                 \\
                 \\Options:
-                \\  -t, --target NUM	Target battery level
+                \\  -t, --target NUM	Target battery level (default: 15)
+                \\  --battery NAME		Battery name (default: BAT0)
                 \\
             , .{});
             std.process.exit(0);