diff --git a/src/protocol/ast_printer.rs b/src/protocol/ast_printer.rs
index 870fcc4561addd9a82cddb3f22779646da3f7fb7..5b4ff24bb9d0d1c0af587cd7ff5a937d47b39533 100644
--- a/src/protocol/ast_printer.rs
+++ b/src/protocol/ast_printer.rs
@@ -1,6 +1,6 @@
 #![allow(dead_code)]
 
-use std::fmt::{Debug, Display, Write};
+use std::fmt::{Debug, Display};
 use std::io::Write as IOWrite;
 
 use super::ast::*;