1 files changed, 1 insertions, 1 deletions
diff --git a/src/libstd/io/mem.rs b/src/libstd/io/mem.rs
index f8ea373f8f4..af5d1630ca6 100644
--- a/src/libstd/io/mem.rs
+++ b/src/libstd/io/mem.rs
@@ -401,7 +401,7 @@ mod test {
     extern crate "test" as test_crate;
     use super::*;
     use io::{SeekSet, SeekCur, SeekEnd, Reader, Writer, Seek};
-    use prelude::{Ok, Err, range,  Vec, Buffer,  AsSlice, SliceExt, IteratorExt, CloneSliceExt};
+    use prelude::{Ok, Err, range,  Vec, Buffer,  AsSlice, SliceExt, IteratorExt};
     use io;
     use self::test_crate::Bencher;