diff --git a/app.js b/app.js
index 9267c49..ff41136 100644
--- a/app.js
+++ b/app.js
@@ -48,6 +48,7 @@ client.on('presenceUpdate', (bef, aft) => {
 
 client.on('voiceStateUpdate', (bef, aft) => {
   if (!aft.channel || !aft.guild.voice || aft.member.user === client.user) return;
+  if (!aft.guild.voice.connection) return;
   if (aft.mute && !aft.deaf) {
     const disp = aft.guild.voice.connection.play('./zvuky/neodposlouchavej.ogg');
     disp.on('finish', () => aft.setDeaf(true, 'otposlouchávala ta gadza'));