diff --git a/src/appchooserdialog.cpp b/src/appchooserdialog.cpp
--- a/src/appchooserdialog.cpp
+++ b/src/appchooserdialog.cpp
@@ -65,8 +65,9 @@
 
     vboxLayout->addLayout(m_gridLayout);
 
-    QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Cancel, this);
+    QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Cancel | QDialogButtonBox::Open, this);
     connect(buttonBox, &QDialogButtonBox::rejected, this, &QDialog::reject);
+    connect(buttonBox, &QDialogButtonBox::accepted, this, &QDialog::accept);
 
     vboxLayout->addWidget(buttonBox, 0, Qt::AlignBottom | Qt::AlignRight);
 
@@ -123,6 +124,10 @@
 
 QString AppChooserDialog::selectedApplication() const
 {
+    if (m_selectedApplication.isEmpty()) {
+        return m_defaultApp;
+    }
+
     return m_selectedApplication;
 }
 
@@ -147,6 +152,9 @@
             AppChooserDialogItem *item = new AppChooserDialogItem(applicationName, applicationIcon, choice, this);
             m_gridLayout->addWidget(item, i, j++, Qt::AlignHCenter);
 
+            connect(item, &AppChooserDialogItem::clicked, this, [this] (const QString &selectedApplication) {
+                m_selectedApplication = selectedApplication;
+            });
             connect(item, &AppChooserDialogItem::doubleClicked, this, [this] (const QString &selectedApplication) {
                 m_selectedApplication = selectedApplication;
                 QDialog::accept();
diff --git a/src/appchooserdialogitem.h b/src/appchooserdialogitem.h
--- a/src/appchooserdialogitem.h
+++ b/src/appchooserdialogitem.h
@@ -38,6 +38,7 @@
     void mousePressEvent(QMouseEvent * event) override;
     void mouseReleaseEvent(QMouseEvent * event) override;
 Q_SIGNALS:
+    void clicked(const QString &applicationName);
     void doubleClicked(const QString &applicationName);
 
 private:
diff --git a/src/appchooserdialogitem.cpp b/src/appchooserdialogitem.cpp
--- a/src/appchooserdialogitem.cpp
+++ b/src/appchooserdialogitem.cpp
@@ -71,6 +71,8 @@
     if (event->button() == Qt::LeftButton) {
         setDown(true);
         setChecked(true);
+
+        Q_EMIT clicked(m_applicationName);
     }
 }