diff --git a/src/util/externalcommand.h b/src/util/externalcommand.h
--- a/src/util/externalcommand.h
+++ b/src/util/externalcommand.h
@@ -104,6 +104,9 @@
 
     void emitReport(const QVariantMap& report) { emit reportSignal(report); }
 
+    /**< Dummy function for QTimer when needed. */
+    void quit();
+    
     // KAuth
     /**< start ExternalCommand Helper */
     bool startHelper();
diff --git a/src/util/externalcommand.cpp b/src/util/externalcommand.cpp
--- a/src/util/externalcommand.cpp
+++ b/src/util/externalcommand.cpp
@@ -119,13 +119,12 @@
 */
 bool ExternalCommand::start(int timeout)
 {
-    Q_UNUSED(timeout)
-
     if (command().isEmpty())
         return false;
 
     if (!QDBusConnection::systemBus().isConnected()) {
         qWarning() << QDBusConnection::systemBus().lastError().message();
+        QTimer::singleShot(timeout, this, &ExternalCommand::quit);
         return false;
     }
 
@@ -168,6 +167,8 @@
     connect(watcher, &QDBusPendingCallWatcher::finished, exitLoop);
     loop.exec();
 
+    QTimer::singleShot(timeout, this, &ExternalCommand::quit);
+
     return rval;
 }
 
@@ -339,6 +340,12 @@
     d->m_ExitCode = i;
 }
 
+/**< Dummy function for QTimer when needed. */
+void ExternalCommand::quit()
+{
+    
+}
+
 bool ExternalCommand::startHelper()
 {
     if (!QDBusConnection::systemBus().isConnected()) {