diff --git a/part.cpp b/part.cpp
index df38e85e9..7ac55d133 100644
--- a/part.cpp
+++ b/part.cpp
@@ -349,10 +349,11 @@ m_cliPresentation(false), m_cliPrint(false), m_embedMode(detectEmbedMode(parentW
 
     numberOfParts++;
     if (numberOfParts == 1) {
-        QDBusConnection::sessionBus().registerObject(QStringLiteral("/okular"), this, QDBusConnection::ExportScriptableSlots);
+        m_registerDbusName = QStringLiteral("/okular");
     } else {
-        QDBusConnection::sessionBus().registerObject(QStringLiteral("/okular%1").arg(numberOfParts), this, QDBusConnection::ExportScriptableSlots);
+        m_registerDbusName = QStringLiteral("/okular%1").arg(numberOfParts);
     }
+    QDBusConnection::sessionBus().registerObject(m_registerDbusName, this, QDBusConnection::ExportScriptableSlots);
 
     // connect the started signal to tell the job the mimetypes we like,
     // and get some more information from it
@@ -882,6 +883,8 @@ void Part::setupActions()
 
 Part::~Part()
 {
+    QDBusConnection::sessionBus().unregisterObject(m_registerDbusName);
+
     GuiUtils::removeIconLoader( iconLoader() );
     m_document->removeObserver( this );
 
diff --git a/part.h b/part.h
index 714039a20..34a6806e6 100644
--- a/part.h
+++ b/part.h
@@ -359,6 +359,8 @@ class OKULARPART_EXPORT Part : public KParts::ReadWritePart, public Okular::Docu
         // Timer for m_infoMessage
         QTimer *m_infoTimer;
 
+        QString m_registerDbusName;
+
     private Q_SLOTS:
         void slotAnnotationPreferences();
         void slotHandleActivatedSourceReference(const QString& absFileName, int line, int col, bool *handled);