diff --git a/src/util/bip158.rs b/src/util/bip158.rs
index 1dc67ca1..8886dfa9 100644
--- a/src/util/bip158.rs
+++ b/src/util/bip158.rs
@@ -47,7 +47,7 @@
 
 use prelude::*;
 
-use io::{self as io, Cursor};
+use io::{self, Cursor};
 use core::fmt::{self, Display, Formatter};
 use core::cmp::{self, Ordering};