1 files changed, 1 insertions, 1 deletions
diff --git a/fxjs/cjs_event_context.h b/fxjs/cjs_event_context.h
index 29bbd5a853..a9933e67bb 100644
--- a/fxjs/cjs_event_context.h
+++ b/fxjs/cjs_event_context.h
@@ -18,7 +18,7 @@ class CJS_EventHandler;
 class CJS_Runtime;
 class CPDFSDK_FormFillEnvironment;
 
-class CJS_EventContext : public IJS_EventContext {
+class CJS_EventContext final : public IJS_EventContext {
  public:
   explicit CJS_EventContext(CJS_Runtime* pRuntime);
   ~CJS_EventContext() override;