diff --git a/vpn_service.h b/vpn_service.h
index 203357f..2b45b61 100644
--- a/vpn_service.h
+++ b/vpn_service.h
@@ -31,6 +31,8 @@
   virtual bool Load(StoreInterface *storage);
   virtual bool Save(StoreInterface *storage);
 
+  virtual void InitDriverPropertyStore();
+
   VPNDriver *driver() const { return driver_.get(); }
 
   static std::string CreateStorageIdentifier(const KeyValueStore &args,