diff --git a/src/libstd/sys/hermit/stdio.rs b/src/libstd/sys/hermit/stdio.rs
index 59f9c3644e8..dfa154f128b 100644
--- a/src/libstd/sys/hermit/stdio.rs
+++ b/src/libstd/sys/hermit/stdio.rs
@@ -17,7 +17,7 @@ impl io::Read for Stdin {
         self.read_vectored(&mut [IoSliceMut::new(data)])
     }
 
-    fn read_vectored(&self, _data: &mut [IoSliceMut<'_>]) -> io::Result<usize> {
+    fn read_vectored(&mut self, _data: &mut [IoSliceMut<'_>]) -> io::Result<usize> {
         //ManuallyDrop::new(unsafe { WasiFd::from_raw(libc::STDIN_FILENO as u32) })
         //    .read(data)
         Ok(0)