diff --git a/src/utils.rs b/src/utils.rs
index 4037b4f..3e76017 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -7,6 +7,7 @@ macro_rules! log {
             .create(true)
             .open("phetch.log")
         {
+            use std::io::prelude::*;
             file.write($e.as_ref());
             file.write(b"\n");
         }