diff --git a/src/Editor/WorldEditor/CSelectInstanceDialog.cpp b/src/Editor/WorldEditor/CSelectInstanceDialog.cpp
index fa277879..ce8af7cd 100644
--- a/src/Editor/WorldEditor/CSelectInstanceDialog.cpp
+++ b/src/Editor/WorldEditor/CSelectInstanceDialog.cpp
@@ -3,13 +3,10 @@
 
 CSelectInstanceDialog::CSelectInstanceDialog(CWorldEditor *pEditor, QWidget *pParent)
     : QDialog(pParent)
-    , ui(new Ui::CSelectInstanceDialog)
     , mpEditor(pEditor)
     , mLayersModel(pEditor, this)
     , mTypesModel(pEditor, this)
-    , mValidSelection(false)
-    , mpLayersInst(nullptr)
-    , mpTypesInst(nullptr)
+    , ui(std::make_unique<Ui::CSelectInstanceDialog>())
 {
     ui->setupUi(this);
 
@@ -45,10 +42,7 @@ CSelectInstanceDialog::CSelectInstanceDialog(CWorldEditor *pEditor, QWidget *pPa
     connect(ui->TypesTreeView, SIGNAL(doubleClicked(QModelIndex)), this, SLOT(OnTreeDoubleClicked(QModelIndex)));
 }
 
-CSelectInstanceDialog::~CSelectInstanceDialog()
-{
-    delete ui;
-}
+CSelectInstanceDialog::~CSelectInstanceDialog() = default;
 
 CScriptObject* CSelectInstanceDialog::SelectedInstance() const
 {
diff --git a/src/Editor/WorldEditor/CSelectInstanceDialog.h b/src/Editor/WorldEditor/CSelectInstanceDialog.h
index aa20c870..7190d39c 100644
--- a/src/Editor/WorldEditor/CSelectInstanceDialog.h
+++ b/src/Editor/WorldEditor/CSelectInstanceDialog.h
@@ -6,6 +6,8 @@
 #include <QDialog>
 #include <QSortFilterProxyModel>
 
+#include <memory>
+
 namespace Ui {
 class CSelectInstanceDialog;
 }
@@ -20,15 +22,15 @@ class CSelectInstanceDialog : public QDialog
     CInstancesProxyModel mLayersProxyModel;
     CInstancesProxyModel mTypesProxyModel;
 
-    bool mValidSelection;
-    CScriptObject *mpLayersInst;
-    CScriptObject *mpTypesInst;
+    bool mValidSelection = false;
+    CScriptObject *mpLayersInst = nullptr;
+    CScriptObject *mpTypesInst = nullptr;
 
-    Ui::CSelectInstanceDialog *ui;
+    std::unique_ptr<Ui::CSelectInstanceDialog> ui;
 
 public:
-    explicit CSelectInstanceDialog(CWorldEditor *pEditor, QWidget *pParent = 0);
-    ~CSelectInstanceDialog();
+    explicit CSelectInstanceDialog(CWorldEditor *pEditor, QWidget *pParent = nullptr);
+    ~CSelectInstanceDialog() override;
 
     CScriptObject* SelectedInstance() const;