diff --git a/src/hotspot/share/gc/parallel/psPromotionManager.hpp b/src/hotspot/share/gc/parallel/psPromotionManager.hpp
index e9a4ba0479e..cfc849d74c2 100644
--- a/src/hotspot/share/gc/parallel/psPromotionManager.hpp
+++ b/src/hotspot/share/gc/parallel/psPromotionManager.hpp
@@ -51,6 +51,7 @@ class ParCompactionManager;
 
 class PSPromotionManager {
   friend class PSScavenge;
+  friend class ScavengeRootsTask;
   friend class PSRefProcTaskExecutor;
  private:
   static PaddedEnd<PSPromotionManager>* _manager_array;