diff --git a/Files.cmake b/Files.cmake
index 092cff7e..d055a231 100644
--- a/Files.cmake
+++ b/Files.cmake
@@ -180,6 +180,8 @@ IF (MSGPACK_ENABLE_CXX)
         include/msgpack/adaptor/cpp11/unique_ptr.hpp
         include/msgpack/adaptor/cpp11/unordered_map.hpp
         include/msgpack/adaptor/cpp11/unordered_set.hpp
+        include/msgpack/adaptor/cpp17/optional.hpp
+        include/msgpack/adaptor/cpp17/string_view.hpp
         include/msgpack/adaptor/define.hpp
         include/msgpack/adaptor/define_decl.hpp
         include/msgpack/adaptor/deque.hpp
@@ -528,6 +530,8 @@ IF (MSGPACK_ENABLE_CXX)
         include/msgpack/v1/adaptor/cpp11/unique_ptr.hpp
         include/msgpack/v1/adaptor/cpp11/unordered_map.hpp
         include/msgpack/v1/adaptor/cpp11/unordered_set.hpp
+        include/msgpack/v1/adaptor/cpp17/optional.hpp
+        include/msgpack/v1/adaptor/cpp17/string_view.hpp
         include/msgpack/v1/adaptor/define.hpp
         include/msgpack/v1/adaptor/define_decl.hpp
         include/msgpack/v1/adaptor/deque.hpp