diff --git a/libstdc++-v3/include/std/ranges b/libstdc++-v3/include/std/ranges
index bbdfb7dbe5c..0a67c45f1b8 100644
--- a/libstdc++-v3/include/std/ranges
+++ b/libstdc++-v3/include/std/ranges
@@ -200,7 +200,7 @@ namespace ranges
     class single_view : public view_interface<single_view<_Tp>>
     {
     public:
-      single_view() requires default_initializable<_Tp> = default;
+      single_view() = default;
 
       constexpr explicit
       single_view(const _Tp& __t)
@@ -1463,9 +1463,7 @@ namespace views::__adaptor
       _Vp _M_base = _Vp();
 
     public:
-      filter_view() requires (default_initializable<_Vp>
-			      && default_initializable<_Pred>)
-	= default;
+      filter_view() requires default_initializable<_Vp> = default;
 
       constexpr
       filter_view(_Vp __base, _Pred __pred)
@@ -1829,9 +1827,7 @@ namespace views::__adaptor
       _Vp _M_base = _Vp();
 
     public:
-      transform_view() requires (default_initializable<_Vp>
-				 && default_initializable<_Fp>)
-	= default;
+      transform_view() requires default_initializable<_Vp> = default;
 
       constexpr
       transform_view(_Vp __base, _Fp __fun)
@@ -2150,9 +2146,7 @@ namespace views::__adaptor
       _Vp _M_base = _Vp();
 
     public:
-      take_while_view() requires (default_initializable<_Vp>
-				  && default_initializable<_Pred>)
-	= default;
+      take_while_view() requires default_initializable<_Vp> = default;
 
       constexpr
       take_while_view(_Vp base, _Pred __pred)
@@ -2356,9 +2350,7 @@ namespace views::__adaptor
       _Vp _M_base = _Vp();
 
     public:
-      drop_while_view() requires (default_initializable<_Vp>
-				  && default_initializable<_Pred>)
-	= default;
+      drop_while_view() requires default_initializable<_Vp> = default;
 
       constexpr
       drop_while_view(_Vp __base, _Pred __pred)
diff --git a/libstdc++-v3/testsuite/std/ranges/adaptors/join.cc b/libstdc++-v3/testsuite/std/ranges/adaptors/join.cc
index d774e8d9385..14e254bc734 100644
--- a/libstdc++-v3/testsuite/std/ranges/adaptors/join.cc
+++ b/libstdc++-v3/testsuite/std/ranges/adaptors/join.cc
@@ -193,6 +193,20 @@ test11()
     ;
 }
 
+void
+test13()
+{
+  // PR libstdc++/106320
+  auto l = std::views::transform([](auto x) {
+    return x | std::views::transform([x=0](auto y) {
+      return y;
+    });
+  });
+  static_assert(!std::default_initializable<decltype(l)>);
+  std::vector<std::vector<int>> v{{5, 6, 7}};
+  v | l | std::views::join;
+}
+
 int
 main()
 {
@@ -207,4 +221,5 @@ main()
   test09();
   test10();
   test11();
+  test13();
 }
diff --git a/libstdc++-v3/testsuite/std/ranges/p2325.cc b/libstdc++-v3/testsuite/std/ranges/p2325.cc
index 205b3458928..99f1b0f08f1 100644
--- a/libstdc++-v3/testsuite/std/ranges/p2325.cc
+++ b/libstdc++-v3/testsuite/std/ranges/p2325.cc
@@ -5,8 +5,8 @@
 // Parts of P2325R3 are deliberately omitted in libstdc++ 11, in particular the
 // removal of default ctors for back_/front_insert_iterator, ostream_iterator,
 // ref_view and basic_istream_view/::iterator, so as to maximize backward
-// compatibility with pre-P2325R3 code.  So most static_asserts in this test fail,
-// see the xfails at the end of this file.
+// compatibility with pre-P2325R3 code.  Namely all static_asserts that verify
+// lack of default constructibility fail; see the xfails at the end of this file.
 
 #include <ranges>
 #include <iterator>
@@ -93,7 +93,7 @@ test06()
   static_assert(default_initializable<decltype(views::single(0) | adaptor(f1))>);
   static_assert(!default_initializable<decltype(views::single(0) | adaptor(f2))>);
 
-  struct S { S() = delete; };
+  struct S { S() = delete; S(const S&) = default; S(S&&) = default; };
   static_assert(!default_initializable<decltype(views::single(declval<S>()) | adaptor(f1))>);
   static_assert(!default_initializable<decltype(views::single(declval<S>()) | adaptor(f2))>);
 }
@@ -109,7 +109,7 @@ void
 test07()
 {
   // Verify join_view is conditionally default constructible.
-  struct S { S() = delete; };
+  struct S { S() = delete; S(const S&) = default; S(S&&) = default; };
   using type1 = ranges::join_view<ranges::single_view<ranges::single_view<S>>>;
   static_assert(!default_initializable<type1>);
   using type2 = ranges::join_view<ranges::single_view<ranges::single_view<int>>>;
@@ -173,6 +173,10 @@ test11()
 // { dg-bogus "static assertion failed" "" { xfail *-*-* } 76 }
 // { dg-bogus "static assertion failed" "" { xfail *-*-* } 77 }
 // { dg-bogus "static assertion failed" "" { xfail *-*-* } 84 }
+// { dg-bogus "static assertion failed" "" { xfail *-*-* } 94 }
+// { dg-bogus "static assertion failed" "" { xfail *-*-* } 97 }
+// { dg-bogus "static assertion failed" "" { xfail *-*-* } 98 }
+// { dg-bogus "static assertion failed" "" { xfail *-*-* } 114 }
 // { dg-bogus "static assertion failed" "" { xfail *-*-* } 124 }
 // { dg-bogus "static assertion failed" "" { xfail *-*-* } 126 }
 // { dg-bogus "static assertion failed" "" { xfail *-*-* } 128 }
