diff --git a/src/util/externalcommand.cpp b/src/util/externalcommand.cpp
--- a/src/util/externalcommand.cpp
+++ b/src/util/externalcommand.cpp
@@ -136,7 +136,7 @@
         cmd = QStandardPaths::findExecutable(command(), { QStringLiteral("/sbin/"), QStringLiteral("/usr/sbin/"), QStringLiteral("/usr/local/sbin/") });
 
     if (!QDBusConnection::systemBus().isConnected()) {
-        qWarning() << "Could not connect to DBus system bus";
+        qWarning() << QDBusConnection::systemBus().lastError().message();
         return false;
     }
 
@@ -189,7 +189,7 @@
     const qint64 blockSize = 10 * 1024 * 1024; // number of bytes per block to copy
 
     if (!QDBusConnection::systemBus().isConnected()) {
-        qWarning() << "Could not connect to DBus system bus";
+        qWarning() << QDBusConnection::systemBus().lastError().message();
         return false;
     }
 
@@ -250,7 +250,7 @@
     bool rval = true;
 
     if (!QDBusConnection::systemBus().isConnected()) {
-        qWarning() << "Could not connect to DBus system bus";
+        qWarning() << QDBusConnection::systemBus().lastError().message();
         return false;
     }
 
@@ -377,9 +377,10 @@
 bool ExternalCommand::startHelper()
 {
     if (!QDBusConnection::systemBus().isConnected()) {
-        qWarning() << "Could not connect to DBus system bus";
+        qWarning() << QDBusConnection::systemBus().lastError().message();
         return false;
     }
+    
     QDBusInterface iface(QStringLiteral("org.kde.kpmcore.helperinterface"), QStringLiteral("/Helper"), QStringLiteral("org.kde.kpmcore.externalcommand"), QDBusConnection::systemBus());
     if (iface.isValid()) {
         exit(0);
@@ -470,11 +471,8 @@
 
 void DBusThread::run()
 {
-    if (!QDBusConnection::systemBus().registerService(QStringLiteral("org.kde.kpmcore.applicationinterface"))) {
-        qWarning() << QDBusConnection::systemBus().lastError().message();
-        return;
-    }
-    if (!QDBusConnection::systemBus().registerObject(QStringLiteral("/Application"), this, QDBusConnection::ExportAllSlots)) {
+    if (!QDBusConnection::systemBus().registerService(QStringLiteral("org.kde.kpmcore.applicationinterface")) || 
+        !QDBusConnection::systemBus().registerObject(QStringLiteral("/Application"), this, QDBusConnection::ExportAllSlots)) {
         qWarning() << QDBusConnection::systemBus().lastError().message();
         return;
     }
diff --git a/src/util/externalcommandhelper.cpp b/src/util/externalcommandhelper.cpp
--- a/src/util/externalcommandhelper.cpp
+++ b/src/util/externalcommandhelper.cpp
@@ -45,18 +45,9 @@
 ActionReply ExternalCommandHelper::init(const QVariantMap& args)
 {
     ActionReply reply;
-    if (!QDBusConnection::systemBus().isConnected()) {
-        qWarning() << "Could not connect to DBus system bus";
-        reply.addData(QStringLiteral("success"), false);
-        return reply;
-    }
 
-    if (!QDBusConnection::systemBus().registerService(QStringLiteral("org.kde.kpmcore.helperinterface"))) {
-        qWarning() << QDBusConnection::systemBus().lastError().message();
-        reply.addData(QStringLiteral("success"), false);
-        return reply;
-    }
-    if (!QDBusConnection::systemBus().registerObject(QStringLiteral("/Helper"), this, QDBusConnection::ExportAllSlots)) {
+    if (!QDBusConnection::systemBus().isConnected() || !QDBusConnection::systemBus().registerService(QStringLiteral("org.kde.kpmcore.helperinterface")) || 
+        !QDBusConnection::systemBus().registerObject(QStringLiteral("/Helper"), this, QDBusConnection::ExportAllSlots)) {
         qWarning() << QDBusConnection::systemBus().lastError().message();
         reply.addData(QStringLiteral("success"), false);
         return reply;