diff --git a/src/io/csv/write/serialize.rs b/src/io/csv/write/serialize.rs
index a3e58bc36c0..cfb6ce18c77 100644
--- a/src/io/csv/write/serialize.rs
+++ b/src/io/csv/write/serialize.rs
@@ -50,7 +50,7 @@ impl Default for SerializeOptions {
     }
 }
 
-/// Utility to write to `&muy Vec<u8>` buffer
+/// Utility to write to `&mut Vec<u8>` buffer
 struct StringWrap<'a>(pub &'a mut Vec<u8>);
 
 impl<'a> Write for StringWrap<'a> {