diff --git a/AntiAircraftGun/AntiAircraftGun/FormGunConfig.cs b/AntiAircraftGun/AntiAircraftGun/FormGunConfig.cs
index 94425a8..8116aab 100644
--- a/AntiAircraftGun/AntiAircraftGun/FormGunConfig.cs
+++ b/AntiAircraftGun/AntiAircraftGun/FormGunConfig.cs
@@ -102,7 +102,7 @@ public partial class FormGunConfig : Form
     private void Panel_MouseDown(object? sender, MouseEventArgs e)
     {
         // TODO реализовать выбор цвета
-        (sender as Control)?.DoDragDrop((sender as Control).BackColor, DragDropEffects.Move | DragDropEffects.Copy);
+        (sender as Control)?.DoDragDrop((sender as Control)?.BackColor ?? Color.Black, DragDropEffects.Move | DragDropEffects.Copy);
     }
     /// <summary>
     /// Передача объекта