diff --git a/src/libstd/sys/wasi/ext/mod.rs b/src/libstd/sys/wasi/ext/mod.rs
index 5f8b1cbfa0b5314a37a4355318a52996a84ad344..58c8c46c969c180cf38f46107908de10445f577f 100644
--- a/src/libstd/sys/wasi/ext/mod.rs
+++ b/src/libstd/sys/wasi/ext/mod.rs
@@ -18,5 +18,5 @@ pub mod prelude {
     pub use crate::sys::ext::fs::{DirEntryExt, FileExt, MetadataExt, OpenOptionsExt};
     #[doc(no_inline)]
     #[stable(feature = "rust1", since = "1.0.0")]
-    pub use crate::sys::ext::io::{AsRawFd, FromRawFd, IntoRawFd};
+    pub use crate::sys::ext::io::{AsRawFd, FromRawFd, IntoRawFd, RawFd};
 }