1 files changed, 1 insertions, 1 deletions
diff --git a/xfa/fxfa/parser/cxfa_attachnodelist.h b/xfa/fxfa/parser/cxfa_attachnodelist.h
index f4cebe48f8..a8248e6c1a 100644
--- a/xfa/fxfa/parser/cxfa_attachnodelist.h
+++ b/xfa/fxfa/parser/cxfa_attachnodelist.h
@@ -12,7 +12,7 @@
 class CXFA_Document;
 class CXFA_Node;
 
-class CXFA_AttachNodeList : public CXFA_TreeList {
+class CXFA_AttachNodeList final : public CXFA_TreeList {
  public:
   CXFA_AttachNodeList(CXFA_Document* pDocument, CXFA_Node* pAttachNode);
   ~CXFA_AttachNodeList() override;