diff --git a/OpenNest.Engine/CuttingPlanning/OwnedProgramCopy.cs b/OpenNest.Core/CNC/CuttingPlanning/OwnedProgramCopy.cs
similarity index 99%
rename from OpenNest.Engine/CuttingPlanning/OwnedProgramCopy.cs
rename to OpenNest.Core/CNC/CuttingPlanning/OwnedProgramCopy.cs
index 05712a7..994fb76 100644
--- a/OpenNest.Engine/CuttingPlanning/OwnedProgramCopy.cs
+++ b/OpenNest.Core/CNC/CuttingPlanning/OwnedProgramCopy.cs
@@ -1,9 +1,8 @@
 using System;
 using System.Collections.Generic;
 using System.Threading;
-using OpenNest.CNC;
 
-namespace OpenNest.Engine.CuttingPlanning;
+namespace OpenNest.CNC.CuttingPlanning;
 
 /// <summary>Lossless owned copies at the cutting-plan boundary, not a general Clone change.</summary>
 internal static class OwnedProgramCopy