diff --git a/crates/oxc_allocator/src/boxed.rs b/crates/oxc_allocator/src/boxed.rs
index a334d5cc1d9ac..bb2f9fd538ce3 100644
--- a/crates/oxc_allocator/src/boxed.rs
+++ b/crates/oxc_allocator/src/boxed.rs
@@ -70,6 +70,12 @@ impl<'alloc, T: ?Sized> AsRef<T> for Box<'alloc, T> {
     }
 }
 
+impl<'alloc, T: ?Sized> AsMut<T> for Box<'alloc, T> {
+    fn as_mut(&mut self) -> &mut T {
+        self
+    }
+}
+
 impl<'alloc, T: ?Sized + Debug> Debug for Box<'alloc, T> {
     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
         self.deref().fmt(f)