diff --git a/eden/fs/inodes/EdenDispatcher.h b/eden/fs/inodes/EdenDispatcher.h
index bdcac54852..8eeb84c53d 100644
--- a/eden/fs/inodes/EdenDispatcher.h
+++ b/eden/fs/inodes/EdenDispatcher.h
@@ -121,7 +121,7 @@ class EdenDispatcher : public Dispatcher {
       const Guid guid,
       ObjectFetchContext& context) override;
 
-  void closedir(const Guid& guid);
+  void closedir(const Guid& guid) override;
 
   HRESULT getEnumerationData(
       const PRJ_CALLBACK_DATA& callbackData,