diff --git a/blog/content/edition-2/posts/11-allocator-designs/index.md b/blog/content/edition-2/posts/11-allocator-designs/index.md
index bf96864d..317cbf9a 100644
--- a/blog/content/edition-2/posts/11-allocator-designs/index.md
+++ b/blog/content/edition-2/posts/11-allocator-designs/index.md
@@ -948,8 +948,9 @@ For constructing a `FixedSizeBlockAllocator`, we provide the same `new` and `ini
 impl FixedSizeBlockAllocator {
     /// Creates an empty FixedSizeBlockAllocator.
     pub const fn new() -> Self {
+        const EMPTY: Option<&'static mut ListNode> = None;
         FixedSizeBlockAllocator {
-            list_heads: [None; BLOCK_SIZES.len()],
+            list_heads: [EMPTY; BLOCK_SIZES.len()],
             fallback_allocator: linked_list_allocator::Heap::empty(),
         }
     }
@@ -965,7 +966,7 @@ impl FixedSizeBlockAllocator {
 }
 ```
 
-The `new` function just initializes the `list_heads` array with empty nodes and creates an [`empty`] linked list allocator as `fallback_allocator`. Since array initializations using non-`Copy` types are still unstable, we need to add **`#![feature(const_in_array_repeat_expressions)]`** to the beginning of our `lib.rs`. The reason that `None` is not `Copy` in this case is that `ListNode` does not implement `Copy`. Thus, the `Option` wrapper and its `None` variant are not `Copy` either.
+The `new` function just initializes the `list_heads` array with empty nodes and creates an [`empty`] linked list allocator as `fallback_allocator`. The `EMPTY` constant is needed because to tell the Rust compiler that we want to initialize the array with a constant value. Initializing the array directly as `[None; BLOCK_SIZES.len()]` does not work because then the compiler requires that `Option<&'static mut ListNode>` implements the `Copy` trait, which is does not. This is a current limitation of the Rust compiler, which might go away in the future.
 
 [`empty`]: https://docs.rs/linked_list_allocator/0.8.0/linked_list_allocator/struct.Heap.html#method.empty