diff --git a/include/flatbuffers/base.h b/include/flatbuffers/base.h
index 085099a..95b788e 100644
--- a/include/flatbuffers/base.h
+++ b/include/flatbuffers/base.h
@@ -197,6 +197,7 @@
 #if (!defined(_MSC_VER) || _MSC_FULL_VER >= 180020827) && \
     (!defined(__GNUC__) || (__GNUC__ * 100 + __GNUC_MINOR__ >= 404)) || \
     defined(__clang__)
+  #define FLATBUFFERS_DEFAULT_DECLARATION
   #define FLATBUFFERS_DELETE_FUNC(func) func = delete;
 #else
   #define FLATBUFFERS_DELETE_FUNC(func) private: func;