1 files changed, 1 insertions, 1 deletions
diff --git a/fxjs/xfa/cjx_button.h b/fxjs/xfa/cjx_button.h
index bf38aa4700..9fe5061b9f 100644
--- a/fxjs/xfa/cjx_button.h
+++ b/fxjs/xfa/cjx_button.h
@@ -12,7 +12,7 @@
 
 class CXFA_Button;
 
-class CJX_Button : public CJX_Node {
+class CJX_Button final : public CJX_Node {
  public:
   explicit CJX_Button(CXFA_Button* node);
   ~CJX_Button() override;