diff --git a/src/hotspot/share/gc/parallel/psPromotionManager.cpp b/src/hotspot/share/gc/parallel/psPromotionManager.cpp
index a8d8baf3a8f6b..fd32357510efa 100644
--- a/src/hotspot/share/gc/parallel/psPromotionManager.cpp
+++ b/src/hotspot/share/gc/parallel/psPromotionManager.cpp
@@ -266,7 +266,7 @@ void PSPromotionManager::flush_labs() {
 }
 
 template <class T> void PSPromotionManager::process_array_chunk_work(
-                                                 oop obj,
+                                                 objArrayOop obj,
                                                  int start, int end) {
   assert(start <= end, "invariant");
   T* const base      = (T*)objArrayOop(obj)->base();
diff --git a/src/hotspot/share/gc/parallel/psPromotionManager.hpp b/src/hotspot/share/gc/parallel/psPromotionManager.hpp
index 0165f78a4c910..e7a2af4207554 100644
--- a/src/hotspot/share/gc/parallel/psPromotionManager.hpp
+++ b/src/hotspot/share/gc/parallel/psPromotionManager.hpp
@@ -101,7 +101,7 @@ class PSPromotionManager {
 
   inline static PSPromotionManager* manager_array(uint index);
 
-  template <class T> void  process_array_chunk_work(oop obj,
+  template <class T> void  process_array_chunk_work(objArrayOop obj,
                                                     int start, int end);
   void process_array_chunk(ArraySliceTask task);