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-rw-r--r--test/std/utilities/tuple/tuple.tuple/tuple.helper/tuple.include.utility.pass.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/test/std/utilities/tuple/tuple.tuple/tuple.helper/tuple.include.utility.pass.cpp b/test/std/utilities/tuple/tuple.tuple/tuple.helper/tuple.include.utility.pass.cpp
index 8c8357d95d99..bd015ab5bbd6 100644
--- a/test/std/utilities/tuple/tuple.tuple/tuple.helper/tuple.include.utility.pass.cpp
+++ b/test/std/utilities/tuple/tuple.tuple/tuple.helper/tuple.include.utility.pass.cpp
@@ -15,9 +15,10 @@
// class tuple_size<tuple<Types...>>
// : public integral_constant<size_t, sizeof...(Types)> { };
//
-// LWG #2212 says that tuple_size and tuple_element must be
+// LWG #2212 says that tuple_size and tuple_element must be
// available after including <utility>
+#include <cstddef>
#include <utility>
#include <type_traits>