diff --git a/0005-Disable-some-more-unsupported-stuff-in-libcore.patch b/0005-Disable-some-more-unsupported-stuff-in-libcore.patch
index 855e96feedd..0fff0728c06 100644
--- a/0005-Disable-some-more-unsupported-stuff-in-libcore.patch
+++ b/0005-Disable-some-more-unsupported-stuff-in-libcore.patch
@@ -70,8 +70,10 @@ index 5d00949..f077f1d 100644
  
 @@ -2295,7 +2297,9 @@ assert_eq!(m, ", $reversed, ");
              #[unstable(feature = "reverse_bits", issue = "48763")]
+             #[rustc_const_unstable(feature = "const_int_conversion")]
              #[inline]
-             pub fn reverse_bits(self) -> Self {
+             #[cfg(not(stage0))]
+             pub const fn reverse_bits(self) -> Self {
 -                unsafe { intrinsics::bitreverse(self as $ActualT) as Self }
 +                // TODO support bitreverse
 +                //unsafe { intrinsics::bitreverse(self as $ActualT) as Self }