diff --git a/app/providers/ProtocolProvider/protocol/protocol.ts b/app/providers/ProtocolProvider/protocol/protocol.ts
index 4846b6c..fb3a4b8 100644
--- a/app/providers/ProtocolProvider/protocol/protocol.ts
+++ b/app/providers/ProtocolProvider/protocol/protocol.ts
@@ -65,10 +65,11 @@ export default class Protocol extends EventEmitter {
     }
 
     public startHeartbeat(intervalS : number) {
+        let _this = this;
         const heartbeat = () => {
-            if(this.socket && this.socket.readyState === WebSocket.OPEN){
+            if(_this.socket && _this.socket.readyState === WebSocket.OPEN){
                 console.info("HEARTBEAT");
-                this.socket?.send('heartbeat');
+                _this.socket?.send('heartbeat');
             }
         }
         if(this.heartbeatIntervalTimer){