diff --git a/src/hotspot/share/gc/parallel/psCompactionManager.hpp b/src/hotspot/share/gc/parallel/psCompactionManager.hpp
index dcd37e763d9..c66bab7c914 100644
--- a/src/hotspot/share/gc/parallel/psCompactionManager.hpp
+++ b/src/hotspot/share/gc/parallel/psCompactionManager.hpp
@@ -43,7 +43,6 @@ class ParCompactionManager : public CHeapObj<mtGC> {
   friend class CompactionWithStealingTask;
   friend class UpdateAndFillClosure;
   friend class RefProcTaskExecutor;
-  friend class IdleGCTask;
   friend class PCRefProcTask;
   friend class MarkFromRootsTask;
   friend class UpdateDensePrefixAndCompactionTask;