1diff --git a/src/main.rs b/src/main.rs
2index f720d4c..a3c6c85 100644
3--- a/src/main.rs
4+++ b/src/main.rs
5@@ -325,6 +325,7 @@ async fn main () -> Result<()> {
6 .value_name("APP")
7 .num_args(1)
8 .value_parser(["mp4decrypt", "shaka"])
9+ .default_value("shaka")
10 .help("Application to use to decrypt encrypted media streams (either mp4decrypt or shaka)."))
11 .arg(Arg::new("save-fragments")
12 .long("save-fragments")