diff --git a/lib/servers.js b/lib/servers.js
index d0ffd90..f5c2f87 100644
--- a/lib/servers.js
+++ b/lib/servers.js
@@ -1,6 +1,8 @@
 const config = require('../config')
 const minecraftVersions = require('../minecraft_versions')
 
+const SERVER_GRAPH_DATA_MAX_LENGTH = 72
+
 class ServerRegistration {
   serverId
   lastFavicon
@@ -105,7 +107,7 @@ class ServerRegistration {
     this._pingHistory.push(ping)
 
     // Trim pingHistory to avoid memory leaks
-    if (this._pingHistory.length > 72) {
+    if (this._pingHistory.length > SERVER_GRAPH_DATA_MAX_LENGTH) {
       this._pingHistory.shift()
     }
   }
diff --git a/lib/time.js b/lib/time.js
index c820ae6..a7ac7ec 100644
--- a/lib/time.js
+++ b/lib/time.js
@@ -1,3 +1,5 @@
+const SERVER_GRAPH_DATA_MAX_LENGTH = require('./servers').SERVER_GRAPH_DATA_MAX_LENGTH
+
 class TimeTracker {
   constructor () {
     this._points = []
@@ -8,7 +10,7 @@ class TimeTracker {
 
     this._points.push(timestamp)
 
-    if (this._points.length > 72) {
+    if (this._points.length > SERVER_GRAPH_DATA_MAX_LENGTH) {
       this._points.shift()
     }