1 files changed, 1 insertions, 0 deletions
diff --git a/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/LayoutViewVM.cs b/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/LayoutViewVM.cs
index fd36d0d13..7ac7db47d 100644
--- a/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/LayoutViewVM.cs
+++ b/Software/Visual_Studio/PPC/Tango.PPC.UI/ViewModels/LayoutViewVM.cs
@@ -3,6 +3,7 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using System.Windows.Threading;
 using Tango.Core.Commands;
 using Tango.Core.DI;
 using Tango.Integration.Operation;