diff --git a/samples/monster_generated.h b/samples/monster_generated.h
index 17d95d3f3..945d992fc 100755
--- a/samples/monster_generated.h
+++ b/samples/monster_generated.h
@@ -39,7 +39,7 @@ inline const char *EnumNameAny(Any e) { return EnumNamesAny()[e]; }
 
 inline bool VerifyAny(flatbuffers::Verifier &verifier, const void *union_obj, Any type);
 
-MANUALLY_ALIGNED_STRUCT(4) Vec3 {
+MANUALLY_ALIGNED_STRUCT(4) Vec3 FLATBUFFERS_FINAL_CLASS {
  private:
   float x_;
   float y_;
@@ -55,7 +55,7 @@ MANUALLY_ALIGNED_STRUCT(4) Vec3 {
 };
 STRUCT_END(Vec3, 12);
 
-struct Monster : private flatbuffers::Table {
+struct Monster FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   const Vec3 *pos() const { return GetStruct<const Vec3 *>(4); }
   int16_t mana() const { return GetField<int16_t>(6, 150); }
   int16_t hp() const { return GetField<int16_t>(8, 100); }