diff --git a/main.cpp b/main.cpp
index 1a6a7ea..8abe704 100644
--- a/main.cpp
+++ b/main.cpp
@@ -135,9 +135,12 @@ int main(int argc, char *argv[]) {
 
     int machineNr = Worker::read1stLineOfFile("/etc/machine_nr");
     int customerNr = Worker::read1stLineOfFile("/etc/cust_nr");
-    QString customerNrStr = QString("customer_") + QString::number(customerNr).rightJustified(3, '0');
     int zoneNr = Worker::read1stLineOfFile("/etc/zone_nr");
-    QString branchName = QString("zg1/zone%1").arg(zoneNr);
+    QString const branchName = (zoneNr != 0)
+            ? QString("zg1/zone%1").arg(zoneNr) : "master";
+
+    QThread::currentThread()->setObjectName("main thread");
+    qInfo() << "Main thread" << QThread::currentThreadId();
 
     Worker worker(hw,
                   customerNr,
@@ -146,8 +149,7 @@ int main(int argc, char *argv[]) {
                   branchName,
                   workingDir,
                   maintenanceMode,
-                  dryRun
-                  );
+                  dryRun);
 
     return a.exec();
 }