diff --git a/src/kcms/kio/useragentselectordlg.cpp b/src/kcms/kio/useragentselectordlg.cpp
index de1f5e1c..f1d25b26 100644
--- a/src/kcms/kio/useragentselectordlg.cpp
+++ b/src/kcms/kio/useragentselectordlg.cpp
@@ -1,161 +1,160 @@
 /**
  * Copyright (c) 2001 Dawit Alemayehu <adawit@kde.org>
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
  *  the Free Software Foundation; either version 2 of the License, or
  *  (at your option) any later version.
  *
  *  This program is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *  GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  */
 
 // Own
 #include "useragentselectordlg.h"
 
 // Local
 #include "useragentinfo.h"
 
 // Qt
 #include <QPushButton>
 #include <QDialogButtonBox>
 #include <QValidator>
 #include <QWidget>
 
 // KDE
 #include <kcombobox.h>
 #include <QLineEdit>
 #include <kurllabel.h>
 #include <KConfigGroup>
 #include <QVBoxLayout>
 
 
 class UserAgentSiteNameValidator : public QValidator
 {
     Q_OBJECT
 public:
     UserAgentSiteNameValidator (QObject* parent)
         : QValidator (parent)
     {
         setObjectName (QStringLiteral ("UserAgentSiteNameValidator"));
     }
 
     State validate (QString& input, int&) const Q_DECL_OVERRIDE
     {
         if (input.isEmpty())
             return Intermediate;
 
         if (input.startsWith (QChar ('.')))
             return Invalid;
 
         const int length = input.length();
 
         for (int i = 0 ; i < length; i++) {
             if (!input[i].isLetterOrNumber() && input[i] != '.' && input[i] != '-')
                 return Invalid;
         }
 
         return Acceptable;
     }
 };
 
 
 UserAgentSelectorDlg::UserAgentSelectorDlg (UserAgentInfo* info, QWidget* parent, Qt::WindowFlags f)
     : QDialog (parent, f),
       mUserAgentInfo (info),
       mButtonBox(nullptr)
 {
     QWidget *mainWidget = new QWidget(this);
-    QVBoxLayout *mainLayout = new QVBoxLayout;
-    setLayout(mainLayout);
+    QVBoxLayout *mainLayout = new QVBoxLayout(this);
     mainLayout->addWidget(mainWidget);
     mUi.setupUi (mainWidget);
 
     mButtonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel, this);
     mainLayout->addWidget(mButtonBox);
 
     connect(mButtonBox, SIGNAL(accepted()), this, SLOT(accept()));
     connect(mButtonBox, SIGNAL(rejected()), this, SLOT(reject()));
 
     if (!mUserAgentInfo) {
         setEnabled (false);
         return;
     }
 
     mUi.aliasComboBox->clear();
     mUi.aliasComboBox->addItems (mUserAgentInfo->userAgentAliasList());
     mUi.aliasComboBox->insertItem (0, QString());
     mUi.aliasComboBox->model()->sort (0);
     mUi.aliasComboBox->setCurrentIndex (0);
 
     UserAgentSiteNameValidator* validator = new UserAgentSiteNameValidator (this);
     mUi.siteLineEdit->setValidator (validator);
     mUi.siteLineEdit->setFocus();
 
     connect (mUi.siteLineEdit, SIGNAL (textEdited (QString)),
              SLOT (onHostNameChanged (QString)));
     connect (mUi.aliasComboBox, SIGNAL (activated (QString)),
              SLOT (onAliasChanged (QString)));
 
     mButtonBox->button(QDialogButtonBox::Ok)->setEnabled (false);
 }
 
 UserAgentSelectorDlg::~UserAgentSelectorDlg()
 {
 }
 
 void UserAgentSelectorDlg::onAliasChanged (const QString& text)
 {
     if (text.isEmpty())
         mUi.identityLineEdit->setText (QString());
     else
         mUi.identityLineEdit->setText (mUserAgentInfo->agentStr (text));
 
     const bool enable = (!mUi.siteLineEdit->text().isEmpty() && !text.isEmpty());
     mButtonBox->button(QDialogButtonBox::Ok)->setEnabled (enable);
 }
 
 void UserAgentSelectorDlg::onHostNameChanged (const QString& text)
 {
     const bool enable = (!text.isEmpty() && !mUi.aliasComboBox->currentText().isEmpty());
     mButtonBox->button(QDialogButtonBox::Ok)->setEnabled (enable);
 }
 
 void UserAgentSelectorDlg::setSiteName (const QString& text)
 {
     mUi.siteLineEdit->setText (text);
 }
 
 void UserAgentSelectorDlg::setIdentity (const QString& text)
 {
     const int id = mUi.aliasComboBox->findText (text);
     if (id != -1)
         mUi.aliasComboBox->setCurrentIndex (id);
 
     mUi.identityLineEdit->setText (mUserAgentInfo->agentStr (mUi.aliasComboBox->currentText()));
     if (!mUi.siteLineEdit->isEnabled())
         mUi.aliasComboBox->setFocus();
 }
 
 QString UserAgentSelectorDlg::siteName()
 {
     return mUi.siteLineEdit->text().toLower();
 }
 
 QString UserAgentSelectorDlg::identity()
 {
     return mUi.aliasComboBox->currentText();
 }
 
 QString UserAgentSelectorDlg::alias()
 {
     return mUi.identityLineEdit->text();
 }
 
-#include "useragentselectordlg.moc"
\ No newline at end of file
+#include "useragentselectordlg.moc"