1 files changed, 1 insertions, 1 deletions
diff --git a/core/fpdfapi/parser/cpdf_document.h b/core/fpdfapi/parser/cpdf_document.h
index be3f30ce5d..d61129378e 100644
--- a/core/fpdfapi/parser/cpdf_document.h
+++ b/core/fpdfapi/parser/cpdf_document.h
@@ -47,7 +47,7 @@ class CPDF_Document : public Observable<CPDF_Document>,
   // Type from which the XFA extension can subclass itself.
   class Extension {
    public:
-    virtual ~Extension() {}
+    virtual ~Extension() = default;
     virtual CPDF_Document* GetPDFDoc() const = 0;
     virtual int GetPageCount() const = 0;
     virtual void DeletePage(int page_index) = 0;