diff --git a/src/response.rs b/src/response.rs
index ec2544a..08319e5 100644
--- a/src/response.rs
+++ b/src/response.rs
@@ -103,7 +103,6 @@ impl Response {
 mod tests {
     use super::*;
     use crate::*;
-    use std::io::prelude::*;
 
     #[test]
     fn success() -> Result<(), Error> {