diff --git a/include/libtorrent/storage.hpp b/include/libtorrent/storage.hpp
index 6ce78c3a8..6c4b5b375 100644
--- a/include/libtorrent/storage.hpp
+++ b/include/libtorrent/storage.hpp
@@ -181,7 +181,7 @@ namespace libtorrent
 		session_settings* m_settings;
 	};
 
-	class default_storage : public storage_interface, boost::noncopyable
+	class TORRENT_EXPORT default_storage : public storage_interface, boost::noncopyable
 	{
 	public:
 		default_storage(file_storage const& fs, file_storage const* mapped, std::string const& path