diff --git a/src/mixer/audio.ts b/src/mixer/audio.ts
index 138e3fd..6c68743 100644
--- a/src/mixer/audio.ts
+++ b/src/mixer/audio.ts
@@ -270,6 +270,8 @@ export class AudioEngine extends ((EngineEmitter as unknown) as {
     if (this.micSource !== null && this.micMedia !== null) {
       this.micMedia.getAudioTracks()[0].stop();
       this.micSource.disconnect();
+      this.micSource = null;
+      this.micMedia = null;
     }
     console.log("opening mic", deviceId);
     this.micMedia = await navigator.mediaDevices.getUserMedia({