diff --git a/src/caas.js b/src/caas.js
index c281a7c07..46eb881a2 100644
--- a/src/caas.js
+++ b/src/caas.js
@@ -3,7 +3,8 @@
 exports = module.exports = {
     migrate: migrate,
     changePlan: changePlan,
-    upgrade: upgrade
+    upgrade: upgrade,
+    sendHeartbeat: sendHeartbeat
 };
 
 var assert = require('assert'),
@@ -172,3 +173,13 @@ function upgrade(boxUpdateInfo, callback) {
     });
 }
 
+function sendHeartbeat() {
+    assert(config.provider() === 'caas', 'Heartbeat is only sent for managed cloudrons');
+
+    var url = config.apiServerOrigin() + '/api/v1/boxes/' + config.fqdn() + '/heartbeat';
+    superagent.post(url).query({ token: config.token(), version: config.version() }).timeout(30 * 1000).end(function (error, result) {
+        if (error && !error.response) debug('Network error sending heartbeat.', error);
+        else if (result.statusCode !== 200) debug('Server responded to heartbeat with %s %s', result.statusCode, result.text);
+        else debug('Heartbeat sent to %s', url);
+    });
+}
diff --git a/src/cloudron.js b/src/cloudron.js
index 648bca817..b62d30e2f 100644
--- a/src/cloudron.js
+++ b/src/cloudron.js
@@ -12,8 +12,6 @@ exports = module.exports = {
     dnsSetup: dnsSetup,
     getLogs: getLogs,
 
-    sendCaasHeartbeat: sendCaasHeartbeat,
-
     updateToLatest: updateToLatest,
     restore: restore,
     reboot: reboot,
@@ -492,17 +490,6 @@ function getConfig(callback) {
     });
 }
 
-function sendCaasHeartbeat() {
-    assert(config.provider() === 'caas', 'Heartbeat is only sent for managed cloudrons');
-
-    var url = config.apiServerOrigin() + '/api/v1/boxes/' + config.fqdn() + '/heartbeat';
-    superagent.post(url).query({ token: config.token(), version: config.version() }).timeout(30 * 1000).end(function (error, result) {
-        if (error && !error.response) debug('Network error sending heartbeat.', error);
-        else if (result.statusCode !== 200) debug('Server responded to heartbeat with %s %s', result.statusCode, result.text);
-        else debug('Heartbeat sent to %s', url);
-    });
-}
-
 function ensureDkimKey(callback) {
     assert(config.fqdn(), 'fqdn is not set');
 
diff --git a/src/cron.js b/src/cron.js
index 9988caa30..6d0fcbfaf 100644
--- a/src/cron.js
+++ b/src/cron.js
@@ -9,6 +9,7 @@ var apps = require('./apps.js'),
     appstore = require('./appstore.js'),
     assert = require('assert'),
     backups = require('./backups.js'),
+    caas = require('./caas.js'),
     certificates = require('./certificates.js'),
     cloudron = require('./cloudron.js'),
     config = require('./config.js'),
@@ -63,7 +64,7 @@ function initialize(callback) {
 
         gJobs.caasHeartbeat = new CronJob({
             cronTime: `${seconds} */1 * * * *`, // every minute
-            onTick: cloudron.sendCaasHeartbeat,
+            onTick: caas.sendHeartbeat,
             start: true
         });
     }