diff --git a/src/appchooserdialog.h b/src/appchooserdialog.h
--- a/src/appchooserdialog.h
+++ b/src/appchooserdialog.h
@@ -38,9 +38,11 @@
 
     QString selectedApplication() const;
 
-private:
+private Q_SLOTS:
     void addDialogItems();
 
+private:
+
     QStringList m_choices;
     QString m_defaultApp;
     QString m_selectedApplication;
diff --git a/src/appchooserdialog.cpp b/src/appchooserdialog.cpp
--- a/src/appchooserdialog.cpp
+++ b/src/appchooserdialog.cpp
@@ -30,6 +30,7 @@
 #include <KLocalizedString>
 #include <QSettings>
 #include <QStandardPaths>
+#include <QTimer>
 
 #include <KProcess>
 
@@ -61,7 +62,7 @@
 
     m_gridLayout = new QGridLayout();
 
-    addDialogItems();
+    QTimer::singleShot(0, this, &AppChooserDialog::addDialogItems);
 
     vboxLayout->addLayout(m_gridLayout);