diff --git a/src/App.js b/src/App.js
index 56a858d..255c848 100644
--- a/src/App.js
+++ b/src/App.js
@@ -4,7 +4,7 @@ import './App.css';
 
 const io = require('socket.io-client');
 
-var stream, pc;
+let stream, pc;
 let localStream;
 // let remoteStream;
 
@@ -331,9 +331,10 @@ class App extends Component {
   };
 
   cleanVideoStreams = () => {
+    console.log('------ cleanVideoStreams ------');
     this.setState({ dest_asset_id: '', callId: null });
     pc.close();
-    // localVideo.srcObject = null;
+    localVideo.srcObject = null;
     // remoteVideo.srcObject = null;
   };
 
@@ -419,7 +420,7 @@ class App extends Component {
         </button>
 
         <br></br>
-        
+
         <h2>
           <u>isCaller:</u> {isCaller ? 'TRUE' : 'FALSE'}
         </h2>