diff --git a/tokio/src/util/ptr_expose.rs b/tokio/src/util/ptr_expose.rs
index c69722fd1..4ea22bb4d 100644
--- a/tokio/src/util/ptr_expose.rs
+++ b/tokio/src/util/ptr_expose.rs
@@ -30,9 +30,7 @@ impl<T> PtrExposeDomain<T> {
     pub(crate) fn expose_provenance(&self, ptr: *const T) -> usize {
         #[cfg(miri)]
         {
-            // FIXME: Use `pointer:addr` when it is stable.
-            // SAFETY: Equivalent to `pointer::addr` which is safe.
-            let addr: usize = unsafe { std::mem::transmute(ptr) };
+            let addr: usize = ptr.addr();
             self.map.lock().insert(addr, ptr);
             addr
         }
@@ -65,8 +63,7 @@ impl<T> PtrExposeDomain<T> {
     pub(crate) fn unexpose_provenance(&self, _ptr: *const T) {
         #[cfg(miri)]
         {
-            // SAFETY: Equivalent to `pointer::addr` which is safe.
-            let addr: usize = unsafe { std::mem::transmute(_ptr) };
+            let addr: usize = _ptr.addr();
             let maybe_ptr = self.map.lock().remove(&addr);
 
             // SAFETY: Intentionally trigger a miri failure if the provenance we want is not