diff --git a/src/vt/termination/interval/integral_set.h b/src/vt/termination/interval/integral_set.h
index 0b18627479..e04e72e040 100644
--- a/src/vt/termination/interval/integral_set.h
+++ b/src/vt/termination/interval/integral_set.h
@@ -378,9 +378,7 @@ struct IntegralSetBase {
   // using reference         = DomainT&;
 
   template <typename Impl>
-  struct IntervalSetIter :
-    std::iterator<std::bidirectional_iterator_tag, DomainT, DomainT>
-  {
+  struct IntervalSetIter {
     using Iter              = IntervalSetIter;
     using iterator_category = std::bidirectional_iterator_tag;
     using difference_type   = DomainT;