diff --git a/commandwidget.h b/commandwidget.h
--- a/commandwidget.h
+++ b/commandwidget.h
@@ -22,7 +22,6 @@
 
 #include <QWidget>
 #include <QString>
-#include <QValidator>
 
 namespace Ui {
 class CommandWidget;
@@ -42,7 +41,6 @@ signals:
 
 private:
     Ui::CommandWidget *ui;
-    QValidator* hexValidator;
 
 private slots:
     void onDeleteClicked();