diff --git a/peglib.h b/peglib.h
index 8cba4df..7eda33f 100644
--- a/peglib.h
+++ b/peglib.h
@@ -965,7 +965,7 @@ class Ope {
 public:
   struct Visitor;
 
-  virtual ~Ope() {}
+  virtual ~Ope() = default;
   size_t parse(const char *s, size_t n, SemanticValues &vs, Context &c,
                std::any &dt) const;
   virtual size_t parse_core(const char *s, size_t n, SemanticValues &vs,