1 files changed, 1 insertions, 1 deletions
diff --git a/core/fpdfapi/page/cpdf_clippath.h b/core/fpdfapi/page/cpdf_clippath.h
index 91a25cda1a..c0b5ce5011 100644
--- a/core/fpdfapi/page/cpdf_clippath.h
+++ b/core/fpdfapi/page/cpdf_clippath.h
@@ -44,7 +44,7 @@ class CPDF_ClipPath {
   void Transform(const CFX_Matrix& matrix);
 
  private:
-  class PathData : public Retainable {
+  class PathData final : public Retainable {
    public:
     using PathAndTypeData = std::pair<CPDF_Path, uint8_t>;