diff --git a/src/hotspot/share/gc/parallel/pcTasks.cpp b/src/hotspot/share/gc/parallel/pcTasks.cpp
index eb128cd..05c16d5 100644
--- a/src/hotspot/share/gc/parallel/pcTasks.cpp
+++ b/src/hotspot/share/gc/parallel/pcTasks.cpp
@@ -108,7 +108,7 @@ void MarkFromRootsTask::do_it(GCTaskManager* manager, uint which) {
       break;
 
     case class_loader_data: {
-        CLDToOopClosure cld_closure(&mark_and_push_closure);
+        CLDToOopClosure cld_closure(&mark_and_push_closure, ClassLoaderData::_claim_value_strong);
         ClassLoaderDataGraph::always_strong_cld_do(&cld_closure);
       }
       break;