diff --git a/test/std/utilities/tuple/tuple.tuple/tuple.assign/copy.pass.cpp b/test/std/utilities/tuple/tuple.tuple/tuple.assign/copy.pass.cpp
index 6a24c278e..edb235a41 100644
--- a/test/std/utilities/tuple/tuple.tuple/tuple.assign/copy.pass.cpp
+++ b/test/std/utilities/tuple/tuple.tuple/tuple.assign/copy.pass.cpp
@@ -16,6 +16,7 @@
 // UNSUPPORTED: c++98, c++03
 
 #include <tuple>
+#include <memory>
 #include <string>
 #include <cassert>