diff --git a/app.js b/app.js
index ec33e6b..7bf0803 100644
--- a/app.js
+++ b/app.js
@@ -109,7 +109,7 @@ const mediaCodecs = [
 
 const closeCall = (callId) => {
   try {
-    if (videoCalls[callId]) {
+    if (callId && videoCalls[callId]) {
       videoCalls[callId].producer?.close();
       videoCalls[callId].consumer?.close();
       videoCalls[callId]?.consumerTransport?.close();
@@ -299,14 +299,14 @@ peers.on('connection', async socket => {
         videoCalls[callId].consumer.on('transportclose', () => {
           const callId = socketDetails[socket.id];
           console.log('transport close from consumer', callId);
-          closeCall();
+          closeCall(callId);
         });
 
         // https://mediasoup.org/documentation/v3/mediasoup/api/#consumer-on-producerclose
         videoCalls[callId].consumer.on('producerclose', () => {
           const callId = socketDetails[socket.id];
           console.log('producer of consumer closed', callId);
-          closeCall();
+          closeCall(callId);
         });
 
         // From the consumer extract the following params to send back to the Client