diff --git a/library/alloc/src/fmt.rs b/library/alloc/src/fmt.rs
index acff026b91b..6899ff4711f 100644
--- a/library/alloc/src/fmt.rs
+++ b/library/alloc/src/fmt.rs
@@ -284,7 +284,7 @@
 //! ```
 //! print!("{0:.1$e}", 12345, 3);
 //! ```
-//! 
+//!
 //! Would return:
 //!
 //! ```text