1 files changed, 1 insertions, 1 deletions
diff --git a/core/src/fpdfdoc/tagged_int.h b/core/src/fpdfdoc/tagged_int.h
index 0ebf4084a4..d190db6427 100644
--- a/core/src/fpdfdoc/tagged_int.h
+++ b/core/src/fpdfdoc/tagged_int.h
@@ -32,7 +32,7 @@ protected:
     CFX_ArrayTemplate<CPDF_StructElementImpl*>	m_Kids;
     friend class CPDF_StructElementImpl;
 };
-class CPDF_StructElementImpl : public CPDF_StructElement
+class CPDF_StructElementImpl FX_FINAL : public CPDF_StructElement
 {
 public:
     CPDF_StructElementImpl(CPDF_StructTreeImpl* pTree, CPDF_StructElementImpl* pParent, CPDF_Dictionary* pDict);