diff --git a/src/Screens/MusicSelect/OptionPage.cpp b/src/Screens/MusicSelect/OptionPage.cpp
index 41080c9..b154935 100644
--- a/src/Screens/MusicSelect/OptionPage.cpp
+++ b/src/Screens/MusicSelect/OptionPage.cpp
@@ -69,5 +69,4 @@ namespace MusicSelect {
         }
         return PanelLayout{markers, resources};
     }
-    
 }
diff --git a/src/Screens/MusicSelect/Panels/MarkerPanel.hpp b/src/Screens/MusicSelect/Panels/MarkerPanel.hpp
index 9f4ccb1..18661ce 100644
--- a/src/Screens/MusicSelect/Panels/MarkerPanel.hpp
+++ b/src/Screens/MusicSelect/Panels/MarkerPanel.hpp
@@ -15,6 +15,6 @@ namespace MusicSelect {
     private:
         void draw(sf::RenderTarget& target, sf::RenderStates states) const override;
         const Resources::Marker& m_marker;
-        std::optional<sf::Clock> selected_since;
+        mutable std::optional<sf::Clock> selected_since;
     };
 }
\ No newline at end of file