diff --git a/Infrastructure/UI/UserControls/PrimitivePopup.xaml.cs b/Infrastructure/UI/UserControls/PrimitivePopup.xaml.cs
index 97b8327..109396a 100644
--- a/Infrastructure/UI/UserControls/PrimitivePopup.xaml.cs
+++ b/Infrastructure/UI/UserControls/PrimitivePopup.xaml.cs
@@ -1,5 +1,6 @@
 using System.Windows;
 using System.Windows.Controls;
+using System.Windows.Controls.Primitives;
 using StructureHelper.Infrastructure.Enums;
 
 namespace StructureHelper.Infrastructure.UI.UserControls