diff --git a/lib/protocol/timedata.js b/lib/protocol/timedata.js
index 326f3401..5d27b22e 100644
--- a/lib/protocol/timedata.js
+++ b/lib/protocol/timedata.js
@@ -7,8 +7,8 @@
 
 'use strict';
 
-const util = require('../utils/util');
 const EventEmitter = require('events');
+const util = require('../utils/util');
 
 /**
  * An object which handles "adjusted time". This may not
@@ -37,7 +37,7 @@ function TimeData(limit) {
   this.known = new Map();
   this.limit = limit;
   this.offset = 0;
-  this._checked = false;
+  this.checked = false;
 }
 
 util.inherits(TimeData, EventEmitter);
@@ -70,7 +70,7 @@ TimeData.prototype.add = function add(id, time) {
       this.offset = median;
     } else {
       this.offset = 0;
-      if (!this._checked) {
+      if (!this.checked) {
         let match = false;
         for (let offset of this.samples) {
           if (offset !== 0 && Math.abs(offset) < 5 * 60) {
@@ -79,7 +79,7 @@ TimeData.prototype.add = function add(id, time) {
           }
         }
         if (!match) {
-          this._checked = true;
+          this.checked = true;
           this.emit('mismatch');
         }
       }