diff --git a/selfdrive/ui/sound.hpp b/selfdrive/ui/sound.hpp
index bdb8590801..ab83a0180d 100644
--- a/selfdrive/ui/sound.hpp
+++ b/selfdrive/ui/sound.hpp
@@ -18,6 +18,7 @@ static std::map<AudibleAlert, std::pair<const char *, int>> sound_map {
 
 class Sound {
 public:
+  virtual ~Sound() {}
   virtual bool play(AudibleAlert alert) = 0;
   virtual void stop() = 0;
   virtual void setVolume(int volume) = 0;