diff --git a/xfa/fxbarcode/BC_TwoDimWriter.h b/xfa/fxbarcode/BC_TwoDimWriter.h
index 6256804..da2e6d9 100644
--- a/xfa/fxbarcode/BC_TwoDimWriter.h
+++ b/xfa/fxbarcode/BC_TwoDimWriter.h
@@ -15,7 +15,8 @@
 class CBC_TwoDimWriter : public CBC_Writer {
  public:
   CBC_TwoDimWriter();
-  virtual ~CBC_TwoDimWriter();
+  ~CBC_TwoDimWriter() override;
+
   virtual void RenderResult(uint8_t* code,
                             int32_t codeWidth,
                             int32_t codeHeight,
@@ -24,7 +25,7 @@
   virtual void RenderDeviceResult(CFX_RenderDevice* device,
                                   const CFX_Matrix* matrix);
   virtual FX_BOOL SetErrorCorrectionLevel(int32_t level) = 0;
-  virtual int32_t GetErrorCorrectionLevel() { return m_iCorrectLevel; }
+  virtual int32_t GetErrorCorrectionLevel();
 
  protected:
   int32_t m_iCorrectLevel;