diff --git a/lib/agent/plugins/control-panel/websockets/index.js b/lib/agent/plugins/control-panel/websockets/index.js
index 10a5798a9..9ab1e8157 100644
--- a/lib/agent/plugins/control-panel/websockets/index.js
+++ b/lib/agent/plugins/control-panel/websockets/index.js
@@ -22,7 +22,7 @@ let hooks;
 let config;
 let ws;
 let pingTimeout;
-let pingPongTimeout;
+let pingInterval;
 let emitter;
 let setAliveTimeInterval = null;
 let setIntervalWSStatus = null;
@@ -253,7 +253,7 @@ exports.startWebsocket = () => {
     });
 
     ws.on('ping', () => {
-      heartbeatTimed();
+      exports.heartbeatTimed();
       if (!ws || !ws.readyState || ws.readyState !== 1) return;
       ws.pong();
     });