diff --git a/src/wp-includes/js/wp-auth-check.js b/src/wp-includes/js/wp-auth-check.js
index 4c0b71d9c2..8b78de953f 100644
--- a/src/wp-includes/js/wp-auth-check.js
+++ b/src/wp-includes/js/wp-auth-check.js
@@ -75,6 +75,7 @@
 		if ( typeof adminpage !== 'undefined' && ( adminpage === 'post-php' || adminpage === 'post-new-php' ) &&
 			typeof wp !== 'undefined' && wp.heartbeat ) {
 
+			$(document).off( 'heartbeat-tick.wp-auth-check' );
 			wp.heartbeat.connectNow();
 		}