Index: test/std/input.output/iostream.format/input.streams/istream.rvalue/rvalue.pass.cpp
===================================================================
--- test/std/input.output/iostream.format/input.streams/istream.rvalue/rvalue.pass.cpp
+++ test/std/input.output/iostream.format/input.streams/istream.rvalue/rvalue.pass.cpp
@@ -65,7 +65,7 @@
     { // test perfect forwarding
         assert(called == false);
         std::istringstream ss;
-        auto& out = (std::move(ss) >> A{});
+        auto&& out = (std::move(ss) >> A{});
         assert(&out == &ss);
         assert(called);
     }