2 files changed, 2 insertions, 0 deletions
diff --git a/src/libstd/sys/unix/ext/fs.rs b/src/libstd/sys/unix/ext/fs.rs
index 4ee790b0161..dca7f6e829f 100644
--- a/src/libstd/sys/unix/ext/fs.rs
+++ b/src/libstd/sys/unix/ext/fs.rs
@@ -12,6 +12,7 @@
 
 #![stable(feature = "rust1", since = "1.0.0")]
 
+#[cfg(stage0)]
 use prelude::v1::*;
 
 use fs::{self, Permissions, OpenOptions};
diff --git a/src/libstd/sys/unix/ext/process.rs b/src/libstd/sys/unix/ext/process.rs
index 06c5261bb42..e984c577935 100644
--- a/src/libstd/sys/unix/ext/process.rs
+++ b/src/libstd/sys/unix/ext/process.rs
@@ -14,6 +14,7 @@
 
 use os::unix::raw::{uid_t, gid_t};
 use os::unix::io::{FromRawFd, RawFd, AsRawFd, IntoRawFd};
+#[cfg(stage0)]
 use prelude::v1::*;
 use process;
 use sys;