diff --git a/examples/encode_string.rs b/examples/encode_string.rs
index 91e9bf9..61dbb66 100644
--- a/examples/encode_string.rs
+++ b/examples/encode_string.rs
@@ -1,4 +1,7 @@
 fn main() {
-    let qr_code = qr_code::QrCode::new(b"Hello").unwrap();
+    let args: Vec<String> = std::env::args().collect();
+    let default = "Hello".to_string();
+    let data = args.get(1).unwrap_or(&default);
+    let qr_code = qr_code::QrCode::new(data.as_bytes()).unwrap();
     println!("{}", qr_code.to_string(true, 3));
 }