diff --git a/RombaSharp/RombaSharp.Help.cs b/RombaSharp/RombaSharp.Help.cs
index 540b7800..4e80217d 100644
--- a/RombaSharp/RombaSharp.Help.cs
+++ b/RombaSharp/RombaSharp.Help.cs
@@ -5,6 +5,7 @@ using System.Linq;
 using SabreTools.Library.Data;
 using SabreTools.Library.DatFiles;
 using SabreTools.Library.DatItems;
+using SabreTools.Library.Filtering;
 using SabreTools.Library.Help;
 using SabreTools.Library.Tools;
 using Microsoft.Data.Sqlite;
diff --git a/SabreTools.Library/DatFiles/DatFile.cs b/SabreTools.Library/DatFiles/DatFile.cs
index 9324f016..6a430bba 100644
--- a/SabreTools.Library/DatFiles/DatFile.cs
+++ b/SabreTools.Library/DatFiles/DatFile.cs
@@ -8,6 +8,7 @@ using System.Threading.Tasks;
 using SabreTools.Library.Data;
 using SabreTools.Library.DatItems;
 using SabreTools.Library.FileTypes;
+using SabreTools.Library.Filtering;
 using SabreTools.Library.Reports;
 using SabreTools.Library.Skippers;
 using SabreTools.Library.Tools;
diff --git a/SabreTools.Library/DatFiles/Filter.cs b/SabreTools.Library/Filtering/Filter.cs
similarity index 99%
rename from SabreTools.Library/DatFiles/Filter.cs
rename to SabreTools.Library/Filtering/Filter.cs
index 67429311..4cf03ba8 100644
--- a/SabreTools.Library/DatFiles/Filter.cs
+++ b/SabreTools.Library/Filtering/Filter.cs
@@ -7,10 +7,11 @@ using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 
 using SabreTools.Library.Data;
+using SabreTools.Library.DatFiles;
 using SabreTools.Library.DatItems;
 using SabreTools.Library.Tools;
 
-namespace SabreTools.Library.DatFiles
+namespace SabreTools.Library.Filtering
 {
     /// <summary>
     /// Represents the filtering operations that need to be performed on a set of items, usually a DAT
diff --git a/SabreTools.Library/DatFiles/FilterItem.cs b/SabreTools.Library/Filtering/FilterItem.cs
similarity index 99%
rename from SabreTools.Library/DatFiles/FilterItem.cs
rename to SabreTools.Library/Filtering/FilterItem.cs
index 14d44725..cee3167a 100644
--- a/SabreTools.Library/DatFiles/FilterItem.cs
+++ b/SabreTools.Library/Filtering/FilterItem.cs
@@ -2,7 +2,7 @@
 using System.Collections.Generic;
 using System.Text.RegularExpressions;
 
-namespace SabreTools.Library.DatFiles
+namespace SabreTools.Library.Filtering
 {
     /// <summary>
     /// Represents a single filter within the overall filter
diff --git a/SabreTools/SabreTools.Help.cs b/SabreTools/SabreTools.Help.cs
index c1f8746d..ddeda8c4 100644
--- a/SabreTools/SabreTools.Help.cs
+++ b/SabreTools/SabreTools.Help.cs
@@ -4,6 +4,7 @@ using System.IO;
 
 using SabreTools.Library.Data;
 using SabreTools.Library.DatFiles;
+using SabreTools.Library.Filtering;
 using SabreTools.Library.Help;
 using SabreTools.Library.Skippers;
 using SabreTools.Library.Tools;