diff --git a/include/util/css_reload_helper.hpp b/include/util/css_reload_helper.hpp
index 4826fc31..032b2382 100644
--- a/include/util/css_reload_helper.hpp
+++ b/include/util/css_reload_helper.hpp
@@ -16,6 +16,8 @@ class CssReloadHelper {
  public:
   CssReloadHelper(std::string cssFile, std::function<void()> callback);
 
+  virtual ~CssReloadHelper() = default;
+
   virtual void monitorChanges();
 
  protected: