diff --git a/stl/inc/ranges b/stl/inc/ranges
index 7f50c4a62e3..e4348db1f3a 100644
--- a/stl/inc/ranges
+++ b/stl/inc/ranges
@@ -1407,9 +1407,9 @@ namespace ranges {
 #endif // _ITERATOR_DEBUG_LEVEL != 0
 
         public:
-            using iterator_concept = conditional_t<random_access_range<_Vw>, random_access_iterator_tag,
-                conditional_t<bidirectional_range<_Vw>, bidirectional_iterator_tag,
-                    conditional_t<forward_range<_Vw>, forward_iterator_tag, input_iterator_tag>>>;
+            using iterator_concept = conditional_t<random_access_range<_Base>, random_access_iterator_tag,
+                conditional_t<bidirectional_range<_Base>, bidirectional_iterator_tag,
+                    conditional_t<forward_range<_Base>, forward_iterator_tag, input_iterator_tag>>>;
             using value_type       = remove_cvref_t<invoke_result_t<_Fn&, range_reference_t<_Base>>>;
             using difference_type  = range_difference_t<_Base>;
 
@@ -3756,9 +3756,9 @@ namespace ranges {
             iterator_t<_Base> _Current{};
 
         public:
-            using iterator_concept = conditional_t<random_access_range<_Vw>, random_access_iterator_tag,
-                conditional_t<bidirectional_range<_Vw>, bidirectional_iterator_tag,
-                    conditional_t<forward_range<_Vw>, forward_iterator_tag, input_iterator_tag>>>;
+            using iterator_concept = conditional_t<random_access_range<_Base>, random_access_iterator_tag,
+                conditional_t<bidirectional_range<_Base>, bidirectional_iterator_tag,
+                    conditional_t<forward_range<_Base>, forward_iterator_tag, input_iterator_tag>>>;
             using value_type       = remove_cvref_t<tuple_element_t<_Index, range_value_t<_Base>>>;
             using difference_type  = range_difference_t<_Base>;