diff --git a/CountItems/CountWorker.js b/CountItems/CountWorker.js
index b3093ff4..a86ac305 100644
--- a/CountItems/CountWorker.js
+++ b/CountItems/CountWorker.js
@@ -54,6 +54,8 @@ class CountWorker {
         if (data.owner !== 'scality') {
             return;
         }
+        monitoring.bucketsCount.labels('error').set(0);
+        monitoring.bucketsCount.labels('success').set(0);
         switch (data.type) {
         case 'count':
             this.countItems(data.bucketInfo, (err, results) => {
diff --git a/CountItems/masterProcess.js b/CountItems/masterProcess.js
index 94048db1..712a21c7 100644
--- a/CountItems/masterProcess.js
+++ b/CountItems/masterProcess.js
@@ -62,15 +62,6 @@ const metricServer = new WebServer(8003, log).onRequest((req, res) => monitoring
 ));
 metricServer.start();
 
-// Set bucketsCount to 0
-monitoring.bucketsCount.labels('error').set(0);
-monitoring.bucketsCount.labels('success').set(0);
-
-// Set objectsCount to 0
-monitoring.objectsCount.labels('error').set(0);
-monitoring.objectsCount.labels('success').set(0);
-monitoring.objectsCount.labels('skipped').set(0);
-
 const handleSignal = sig => countMaster.stop(sig, () => process.exit(0));
 process.on('SIGINT', handleSignal);
 process.on('SIGHUP', handleSignal);
diff --git a/utils/S3UtilsMongoClient.js b/utils/S3UtilsMongoClient.js
index ab7b3689..6ed81898 100644
--- a/utils/S3UtilsMongoClient.js
+++ b/utils/S3UtilsMongoClient.js
@@ -113,6 +113,11 @@ class S3UtilsMongoClient extends MongoClientInterface {
 
             let startCursorDate = new Date();
             let processed = 0;
+
+            monitoring.objectsCount.labels('error').set(0);
+            monitoring.objectsCount.labels('success').set(0);
+            monitoring.objectsCount.labels('skipped').set(0);
+
             await cursor.forEach(
                 res => {
                     // Periodically display information about the cursor