2 files changed, 2 insertions, 2 deletions
diff --git a/src/libstd/sys/unix/os_str.rs b/src/libstd/sys/unix/os_str.rs
index 3dd89ad0759..a2c93dea6a4 100644
--- a/src/libstd/sys/unix/os_str.rs
+++ b/src/libstd/sys/unix/os_str.rs
@@ -20,7 +20,7 @@ use str;
 use string::{String, CowString};
 use mem;
 
-#[derive(Clone)]
+#[derive(Clone, Hash)]
 pub struct Buf {
     pub inner: Vec<u8>
 }
diff --git a/src/libstd/sys/windows/os_str.rs b/src/libstd/sys/windows/os_str.rs
index aab2406cef9..af94b56bf1f 100644
--- a/src/libstd/sys/windows/os_str.rs
+++ b/src/libstd/sys/windows/os_str.rs
@@ -18,7 +18,7 @@ use result::Result;
 use option::Option;
 use mem;
 
-#[derive(Clone)]
+#[derive(Clone, Hash)]
 pub struct Buf {
     pub inner: Wtf8Buf
 }