diff --git a/src/libstd/rt/rtio.rs b/src/libstd/rt/rtio.rs
index 568ea3317e5..c3ab2bd1cfd 100644
--- a/src/libstd/rt/rtio.rs
+++ b/src/libstd/rt/rtio.rs
@@ -75,7 +75,6 @@ pub trait IoFactory {
     fn fs_unlink<P: PathLike>(&mut self, path: &P) -> Result<(), IoError>;
     fn get_host_addresses(&mut self, host: &str) -> Result<~[IpAddr], IoError>;
     fn fs_stat<P: PathLike>(&mut self, path: &P) -> Result<FileStat, IoError>;
-    //fn fs_fstat(&mut self, fd: c_int) -> Result<FileStat, IoError>;
     fn fs_mkdir<P: PathLike>(&mut self, path: &P) -> Result<(), IoError>;
     fn fs_rmdir<P: PathLike>(&mut self, path: &P) -> Result<(), IoError>;
     fn fs_readdir<P: PathLike>(&mut self, path: &P, flags: c_int) ->
diff --git a/src/libstd/rt/uv/uvio.rs b/src/libstd/rt/uv/uvio.rs
index 2d024f04e1d..154c90ec6fa 100644
--- a/src/libstd/rt/uv/uvio.rs
+++ b/src/libstd/rt/uv/uvio.rs
@@ -686,9 +686,6 @@ impl IoFactory for UvIoFactory {
         assert!(!result_cell.is_empty());
         return result_cell.take();
     }
-    //fn fs_fstat(&mut self, _fd: c_int) -> Result<FileStat, IoError> {
-    //    Ok(FileStat)
-    //}
     fn fs_mkdir<P: PathLike>(&mut self, path: &P) -> Result<(), IoError> {
         let mode = S_IRWXU as int;
         do uv_fs_helper(self.uv_loop(), path) |mkdir_req, l, p, cb| {