diff --git a/src/main.rs b/src/main.rs
index 464c01d..c17a40a 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,5 @@
 use std::io;
-use std::io::{Read, Write};
+use std::io::{Read, Write, BufWriter};
 use std::fs;
 use std::str::FromStr;
 use std::path::PathBuf;