diff --git a/STL_Extension/include/CGAL/Compact_container.h b/STL_Extension/include/CGAL/Compact_container.h
index 4ff6fb08246..5c9e7b00567 100644
--- a/STL_Extension/include/CGAL/Compact_container.h
+++ b/STL_Extension/include/CGAL/Compact_container.h
@@ -402,7 +402,7 @@ public:
     pointer ret = free_list;
     free_list = clean_pointee(ret);
     const auto ts = Time_stamper::time_stamp(ret);
-    std::allocator_traits<allocator_type>::construct(alloc, ret, std::forward<Args>(args)...);
+    new (ret) value_type(std::forward<Args>(args)...);
     Time_stamper::restore_timestamp(ret, ts);
     Time_stamper::set_time_stamp(ret, time_stamp);
     CGAL_assertion(type(ret) == USED);
diff --git a/STL_Extension/include/CGAL/Concurrent_compact_container.h b/STL_Extension/include/CGAL/Concurrent_compact_container.h
index 93ed4495c35..653ea056e74 100644
--- a/STL_Extension/include/CGAL/Concurrent_compact_container.h
+++ b/STL_Extension/include/CGAL/Concurrent_compact_container.h
@@ -353,7 +353,7 @@ public:
     pointer ret = init_insert(fl);
     auto erase_counter = EraseCounterStrategy<T>::erase_counter(*ret);
     const auto ts = Time_stamper::time_stamp(ret);
-    std::allocator_traits<allocator_type>::construct(m_alloc, ret, std::forward<Args>(args)...);
+    new (ret) value_type(std::forward<Args>(args)...);
     Time_stamper::restore_timestamp(ret, ts);
     EraseCounterStrategy<T>::set_erase_counter(*ret, erase_counter);
     return finalize_insert(ret, fl);