diff --git a/src/r3_core/src/lib.rs b/src/r3_core/src/lib.rs
index c1bc8101cc..95a884f546 100644
--- a/src/r3_core/src/lib.rs
+++ b/src/r3_core/src/lib.rs
@@ -3,12 +3,12 @@
 #![feature(const_nonnull_slice_from_raw_parts)]
 #![feature(const_maybe_uninit_uninit_array)]
 #![feature(const_maybe_uninit_assume_init)]
+#![feature(const_slice_from_raw_parts_mut)]
 #![feature(maybe_uninit_array_assume_init)]
 #![feature(const_maybe_uninit_as_mut_ptr)]
 #![feature(nonnull_slice_from_raw_parts)]
 #![feature(arbitrary_enum_discriminant)]
 #![feature(type_changing_struct_update)]
-#![feature(const_slice_from_raw_parts)]
 #![feature(maybe_uninit_uninit_array)]
 #![feature(const_precise_live_drops)]
 #![feature(const_raw_ptr_comparison)]
diff --git a/src/r3_kernel/src/lib.rs b/src/r3_kernel/src/lib.rs
index 6a8d22e085..3aa0acfa3d 100644
--- a/src/r3_kernel/src/lib.rs
+++ b/src/r3_kernel/src/lib.rs
@@ -1,8 +1,8 @@
 #![feature(const_maybe_uninit_array_assume_init)]
 #![feature(const_maybe_uninit_uninit_array)]
 #![feature(const_maybe_uninit_assume_init)]
+#![feature(const_slice_from_raw_parts_mut)]
 #![feature(maybe_uninit_array_assume_init)]
-#![feature(const_slice_from_raw_parts)]
 #![feature(maybe_uninit_uninit_array)]
 #![feature(const_precise_live_drops)]
 #![feature(const_raw_ptr_comparison)]