diff --git a/.github/workflows/miri.yml b/.github/workflows/miri.yml
index be7fc679c..bcbc52dc5 100644
--- a/.github/workflows/miri.yml
+++ b/.github/workflows/miri.yml
@@ -6,12 +6,14 @@ on:
     types: [opened, synchronize]
     paths:
       - 'crates/oxc_parser/**'
+      - 'crates/oxc_allocator/**'
       - '.github/workflows/miri.yml'
   push:
     branches:
       - main
     paths:
       - 'crates/oxc_parser/**'
+      - 'crates/oxc_allocator/**'
       - '.github/workflows/miri.yml'
 
 concurrency:
diff --git a/crates/oxc_allocator/src/arena.rs b/crates/oxc_allocator/src/arena.rs
index 0dec1cdaf..ffd5a089b 100644
--- a/crates/oxc_allocator/src/arena.rs
+++ b/crates/oxc_allocator/src/arena.rs
@@ -20,7 +20,7 @@ use crate::Allocator;
 /// A Box without Drop.
 /// This is used for over coming self-referential structs.
 /// It is a memory leak if the boxed value has a `Drop` implementation.
-pub struct Box<'alloc, T: ?Sized>(NonNull<T>, PhantomData<&'alloc T>);
+pub struct Box<'alloc, T: ?Sized>(NonNull<T>, PhantomData<(&'alloc (), T)>);
 
 impl<'alloc, T> Box<'alloc, T> {
     #[allow(unsafe_code)]