diff --git a/library/std/src/fs.rs b/library/std/src/fs.rs
index 55c22092c45..be01a031ff0 100644
--- a/library/std/src/fs.rs
+++ b/library/std/src/fs.rs
@@ -676,6 +676,10 @@ impl Read for &File {
         self.inner.read(buf)
     }
 
+    fn read_buf(&mut self, buf: &mut ReadBuf<'_>) -> io::Result<()> {
+        self.inner.read_buf(buf)
+    }
+
     fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> io::Result<usize> {
         self.inner.read_vectored(bufs)
     }