diff --git a/Files.cmake b/Files.cmake
index df750658..302edba3 100644
--- a/Files.cmake
+++ b/Files.cmake
@@ -202,6 +202,7 @@ IF (MSGPACK_ENABLE_CXX)
         include/msgpack/cpp_config_decl.hpp
         include/msgpack/fbuffer.hpp
         include/msgpack/fbuffer_decl.hpp
+        include/msgpack/gcc_atomic.hpp
         include/msgpack/iterator.hpp
         include/msgpack/iterator_decl.hpp
         include/msgpack/meta.hpp
diff --git a/src/gcc_atomic.hpp b/include/msgpack/gcc_atomic.hpp
similarity index 100%
rename from src/gcc_atomic.hpp
rename to include/msgpack/gcc_atomic.hpp
diff --git a/src/files.mk b/src/files.mk
index 4eaf0575..6eb95d6e 100644
--- a/src/files.mk
+++ b/src/files.mk
@@ -200,6 +200,7 @@ nobase_include_HEADERS += \
 	../include/msgpack/cpp_config_decl.hpp \
 	../include/msgpack/fbuffer.hpp \
 	../include/msgpack/fbuffer_decl.hpp \
+	../include/msgpack/gcc_atomic.hpp \
 	../include/msgpack/iterator.hpp \
 	../include/msgpack/iterator_decl.hpp \
 	../include/msgpack/meta.hpp \