diff --git a/native_mate/dictionary.h b/native_mate/dictionary.h
index 2eb52922d268..5a56a9e06bb1 100644
--- a/native_mate/dictionary.h
+++ b/native_mate/dictionary.h
@@ -35,7 +35,7 @@ class Dictionary {
  public:
   Dictionary();
   Dictionary(v8::Isolate* isolate, v8::Local<v8::Object> object);
-  ~Dictionary();
+  virtual ~Dictionary();
 
   static Dictionary CreateEmpty(v8::Isolate* isolate);