diff --git a/src/mainwindow.h b/src/mainwindow.h
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -25,11 +25,6 @@
 #include <QStackedWidget>
 #include <QUrl>
 
-namespace Ui
-{
-class MainWindow;
-}
-
 struct LateralArea {
     // Area with the the lateral buttons that will open the views.
     // Kind like the KDevelop stuff but way simpler.
@@ -50,10 +45,8 @@
 
 public:
     explicit MainWindow(QWidget *parent = nullptr);
-    ~MainWindow();
 
 private:
-    Ui::MainWindow *ui;
     QList<QUrl> m_openFiles;
     KTextEditor::View *m_currEditorView;
     LateralArea m_lateral;
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -36,11 +36,9 @@
 
 MainWindow::MainWindow(QWidget *parent) :
     KXmlGuiWindow(parent),
-    ui(new Ui::MainWindow),
     m_currEditorView(nullptr),
     m_instances(new QTabWidget(this))
 {
-    ui->setupUi(this);
     initWidgets();
     setupActions();
     connect(m_instances, &QTabWidget::tabCloseRequested, [this] (int index){
@@ -55,11 +53,6 @@
 
 }
 
-MainWindow::~MainWindow()
-{
-    delete ui;
-}
-
 void MainWindow::initWidgets()
 {
 
@@ -75,7 +68,9 @@
     splitter->addWidget(m_instances);
     centralLayout->addWidget(m_lateral.m_toolBar);
     centralLayout->addWidget(splitter);
-    ui->centralwidget->setLayout(centralLayout);
+    auto *centralWidget = new QWidget();
+    centralWidget->setLayout(centralLayout);
+    setCentralWidget(centralWidget);
 }
 void MainWindow::newAtCoreInstance()
 {
diff --git a/src/mainwindow.ui b/src/mainwindow.ui
deleted file mode 100644
--- a/src/mainwindow.ui
+++ /dev/null
@@ -1,55 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<ui version="4.0">
- <class>MainWindow</class>
- <widget class="QMainWindow" name="MainWindow">
-  <property name="geometry">
-   <rect>
-    <x>0</x>
-    <y>0</y>
-    <width>0</width>
-    <height>0</height>
-   </rect>
-  </property>
-  <property name="windowTitle">
-   <string>Atelier</string>
-  </property>
-  <widget class="QWidget" name="centralwidget"/>
-  <widget class="QMenuBar" name="menubar">
-   <property name="geometry">
-    <rect>
-     <x>0</x>
-     <y>0</y>
-     <width>1074</width>
-     <height>36</height>
-    </rect>
-   </property>
-   <widget class="QMenu" name="menuFile">
-    <property name="title">
-     <string>Fi&amp;le</string>
-    </property>
-   </widget>
-   <widget class="QMenu" name="menuEdit">
-    <property name="title">
-     <string>Edit</string>
-    </property>
-   </widget>
-   <addaction name="menuFile"/>
-   <addaction name="menuEdit"/>
-  </widget>
-  <widget class="QStatusBar" name="statusBar">
-   <property name="contextMenuPolicy">
-    <enum>Qt::NoContextMenu</enum>
-   </property>
-   <property name="sizeGripEnabled">
-    <bool>false</bool>
-   </property>
-  </widget>
-  <action name="actionTeste">
-   <property name="text">
-    <string>Teste</string>
-   </property>
-  </action>
- </widget>
- <resources/>
- <connections/>
-</ui>