diff --git a/rust-whisper-lib/src/lib.rs b/rust-whisper-lib/src/lib.rs
index fe4f2ee..0c56b93 100644
--- a/rust-whisper-lib/src/lib.rs
+++ b/rust-whisper-lib/src/lib.rs
@@ -9,8 +9,9 @@ use std::io::Write;
 
 #[derive(Parser, Debug)]
 pub struct Flags {
-   #[arg(long, default_value = "./models/ggml-tiny.en.bin")]
+   #[arg(long, default_value = "../models/ggml-tiny.en.bin")]
    pub model_path: Option<String>,
+   #[arg(long, default_value = None)]
    pub model_buffer: Option<Vec<u8>>,
 
    #[arg(long, default_value = "8")]
@@ -25,6 +26,7 @@ pub struct Flags {
    #[arg(long, default_value = "0.3")]
    pub stream_tail: f32,
 
+   #[arg(long, default_value = None)]
    pub wav: Option<String>,
 
    #[arg(long, default_value = "false")]