diff --git a/examples/optional/src/main.rs b/examples/optional/src/main.rs
index 3e55cd8a..f0f6a8c4 100644
--- a/examples/optional/src/main.rs
+++ b/examples/optional/src/main.rs
@@ -1,5 +1,5 @@
 //! This example loads an env file only if the file exists.
-//! 
+//!
 //! `HOST=abc cargo run`
 use dotenvy::{EnvLoader, EnvSequence};
 use std::{error, fs::File, path::Path};