diff --git a/SabreTools.Library/Dats/Machine.cs b/SabreTools.Library/Dats/Machine.cs
index bd0ef316..2207efe1 100644
--- a/SabreTools.Library/Dats/Machine.cs
+++ b/SabreTools.Library/Dats/Machine.cs
@@ -5,7 +5,7 @@ using SabreTools.Library.Data;
 
 namespace SabreTools.Library.Dats
 {
-	public class Machine
+	public class Machine : ICloneable
 	{
 		#region Protected instance variables
 
@@ -83,6 +83,35 @@ namespace SabreTools.Library.Dats
 
 		#endregion
 
+		#region Cloning methods
+
+		/// <summary>
+		/// Create a clone of the current machine
+		/// </summary>
+		/// <returns>New machine with the same values as the current one</returns>
+		public object Clone()
+		{
+			return new Machine()
+			{
+				Name = this.Name,
+				Comment = this.Comment,
+				Description = this.Description,
+				Year = this.Year,
+				Manufacturer = this.Manufacturer,
+				RomOf = this.RomOf,
+				CloneOf = this.CloneOf,
+				SampleOf = this.SampleOf,
+				SourceFile = this.SourceFile,
+				Runnable = this.Runnable,
+				Board = this.Board,
+				RebuildTo = this.RebuildTo,
+				Devices = this.Devices,
+				MachineType = this.MachineType,
+			};
+		}
+
+		#endregion
+
 		#region Equality comparerers
 
 		/// <summary>
diff --git a/SabreTools.Library/Dats/Partials/DatFile.Parsers.cs b/SabreTools.Library/Dats/Partials/DatFile.Parsers.cs
index 617429e4..8aaefb27 100644
--- a/SabreTools.Library/Dats/Partials/DatFile.Parsers.cs
+++ b/SabreTools.Library/Dats/Partials/DatFile.Parsers.cs
@@ -1813,7 +1813,7 @@ namespace SabreTools.Library.Dats
 											CRC = subreader.ReadElementContentAsString(),
 											ItemStatus = ItemStatus.None,
 
-											Machine = machine,
+											Machine = (Machine)machine.Clone(),
 										};
 
 										// Now process and add the rom
@@ -1900,7 +1900,7 @@ namespace SabreTools.Library.Dats
 											Date = date,
 											Default = defaultrel,
 
-											Machine = machine,
+											Machine = (Machine)machine.Clone(),
 
 											Supported = supported,
 											Publisher = publisher,
@@ -1939,7 +1939,7 @@ namespace SabreTools.Library.Dats
 											Description = subreader.GetAttribute("description"),
 											Default = defaultbios,
 
-											Machine = machine,
+											Machine = (Machine)machine.Clone(),
 
 											Supported = supported,
 											Publisher = publisher,
@@ -1967,7 +1967,7 @@ namespace SabreTools.Library.Dats
 										{
 											Name = subreader.GetAttribute("name"),
 
-											Machine = machine,
+											Machine = (Machine)machine.Clone(),
 
 											Supported = supported,
 											Publisher = publisher,
@@ -1995,7 +1995,7 @@ namespace SabreTools.Library.Dats
 										{
 											Name = subreader.GetAttribute("name"),
 
-											Machine = machine,
+											Machine = (Machine)machine.Clone(),
 
 											Supported = supported,
 											Publisher = publisher,
@@ -2104,7 +2104,7 @@ namespace SabreTools.Library.Dats
 													MergeTag = merge,
 													ItemStatus = its,
 
-													Machine = machine,
+													Machine = (Machine)machine.Clone(),
 
 													Supported = supported,
 													Publisher = publisher,
@@ -2136,7 +2136,7 @@ namespace SabreTools.Library.Dats
 													MergeTag = merge,
 													Date = date,
 
-													Machine = machine,
+													Machine = (Machine)machine.Clone(),
 
 													Supported = supported,
 													Publisher = publisher,