diff --git a/guecs.hpp b/guecs.hpp
index 689a19f..68e3581 100644
--- a/guecs.hpp
+++ b/guecs.hpp
@@ -93,6 +93,7 @@ namespace guecs {
 
     void init(lel::Cell &cell);
     void run();
+    void stop();
     void step();
     shared_ptr<sf::Shader> checkout_ptr();
   };
@@ -100,6 +101,7 @@ namespace guecs {
   struct Sound {
     std::string on_click{"ui_click"};
     void play(bool hover);
+    void stop(bool hover);
   };
 
   struct Background {