diff --git a/src/driver/tasks/mixer/mod.rs b/src/driver/tasks/mixer/mod.rs
index 1c825c6d0..e80ea3c18 100644
--- a/src/driver/tasks/mixer/mod.rs
+++ b/src/driver/tasks/mixer/mod.rs
@@ -231,6 +231,7 @@ impl Mixer {
             MixerMessage::AddTrack(t) => self.add_track(t),
             MixerMessage::SetTrack(t) => {
                 self.tracks.clear();
+                self.track_handles.clear();
 
                 let mut out = self.fire_event(EventMessage::RemoveAllTracks);