diff --git a/sources/awesome-widget/plugin/awkeys.cpp b/sources/awesome-widget/plugin/awkeys.cpp
index 4e4aa07..6a05524 100644
--- a/sources/awesome-widget/plugin/awkeys.cpp
+++ b/sources/awesome-widget/plugin/awkeys.cpp
@@ -79,7 +79,7 @@ AWKeys::~AWKeys()
     delete m_timer;
 
     // delete dbus session
-    long id = reinterpret_cast<long>(this);
+    qlonglong id = reinterpret_cast<qlonglong>(this);
     QDBusConnection::sessionBus().unregisterObject(QString("/%1").arg(id));
 
     // core
@@ -330,7 +330,7 @@ void AWKeys::calculateValues()
 void AWKeys::createDBusInterface()
 {
     // get this object id
-    long id = reinterpret_cast<long>(this);
+    qlonglong id = reinterpret_cast<qlonglong>(this);
 
     // create session
     QDBusConnection bus = QDBusConnection::sessionBus();
diff --git a/sources/test/testawkeys.cpp b/sources/test/testawkeys.cpp
index cb819fa..614a499 100644
--- a/sources/test/testawkeys.cpp
+++ b/sources/test/testawkeys.cpp
@@ -18,10 +18,13 @@
 
 #include "testawkeys.h"
 
+#include <QDBusConnection>
+#include <QDBusMessage>
 #include <QtTest>
 
 #include "awkeys.h"
 #include "awtestlibrary.h"
+#include "version.h"
 
 
 void TestAWKeys::initTestCase()
@@ -159,4 +162,24 @@ void TestAWKeys::test_valueByKey()
 }
 
 
+void TestAWKeys::test_dbus()
+{
+    // get id
+    qlonglong id = reinterpret_cast<qlonglong>(plugin);
+
+    // create connection and message
+    QDBusConnection bus = QDBusConnection::sessionBus();
+    QDBusMessage request
+        = QDBusMessage::createMethodCall(AWDBUS_SERVICE, QString("/%1").arg(id),
+                                         AWDBUS_SERVICE, QString("WhoAmI"));
+    // send message to dbus
+    QDBusMessage response = bus.call(request, QDBus::BlockWithGui);
+
+    // parse result
+    QList<QVariant> arguments = response.arguments();
+    QVERIFY(!arguments.isEmpty());
+    QCOMPARE(arguments.at(0).toLongLong(), id);
+}
+
+
 QTEST_MAIN(TestAWKeys);
diff --git a/sources/test/testawkeys.h b/sources/test/testawkeys.h
index 3c5a2fd..7a6c730 100644
--- a/sources/test/testawkeys.h
+++ b/sources/test/testawkeys.h
@@ -40,6 +40,7 @@ private slots:
     void test_wrapNewLines();
     void test_infoByKey();
     void test_valueByKey();
+    void test_dbus();
 
 private:
     AWKeys *plugin = nullptr;