diff --git a/runtime/gc/reference_queue.h b/runtime/gc/reference_queue.h
index 8d392ba..4f223e2 100644
--- a/runtime/gc/reference_queue.h
+++ b/runtime/gc/reference_queue.h
@@ -59,8 +59,8 @@
   // Enqueues finalizer references with white referents.  White referents are blackened, moved to the
   // zombie field, and the referent field is cleared.
   void EnqueueFinalizerReferences(ReferenceQueue& cleared_references,
-                                  IsMarkedCallback is_marked_callback,
-                                  MarkObjectCallback recursive_mark_callback, void* arg)
+                                  IsMarkedCallback* is_marked_callback,
+                                  MarkObjectCallback* mark_object_callback, void* arg)
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
   // Walks the reference list marking any references subject to the reference clearing policy.
   // References with a black referent are removed from the list.  References with white referents
@@ -69,7 +69,8 @@
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
   // Unlink the reference list clearing references objects with white referents.  Cleared references
   // registered to a reference queue are scheduled for appending by the heap worker thread.
-  void ClearWhiteReferences(ReferenceQueue& cleared_references, IsMarkedCallback is_marked_callback,
+  void ClearWhiteReferences(ReferenceQueue& cleared_references,
+                            IsMarkedCallback* is_marked_callback,
                             void* arg)
       SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);
   void Dump(std::ostream& os) const