diff --git a/ProjectPlugins/CodexClient/CodexTypes.cs b/ProjectPlugins/CodexClient/CodexTypes.cs
index f9a0d9d2..12e7c92c 100644
--- a/ProjectPlugins/CodexClient/CodexTypes.cs
+++ b/ProjectPlugins/CodexClient/CodexTypes.cs
@@ -66,7 +66,7 @@ namespace CodexClient
     public class Manifest
     {
         public string RootHash { get; set; } = string.Empty;
-        public ByteSize OriginalBytes { get; set; } = ByteSize.Zero;
+        public ByteSize DatasetSize { get; set; } = ByteSize.Zero;
         public ByteSize BlockSize { get; set; } = ByteSize.Zero;
         public bool Protected { get; set; }
     }
diff --git a/ProjectPlugins/CodexClient/Mapper.cs b/ProjectPlugins/CodexClient/Mapper.cs
index 35f872ef..69d586f8 100644
--- a/ProjectPlugins/CodexClient/Mapper.cs
+++ b/ProjectPlugins/CodexClient/Mapper.cs
@@ -208,7 +208,7 @@ namespace CodexClient
             return new Manifest
             {
                 BlockSize = new ByteSize(Convert.ToInt64(manifest.BlockSize)),
-                OriginalBytes = new ByteSize(Convert.ToInt64(manifest.DatasetSize)),
+                DatasetSize = new ByteSize(Convert.ToInt64(manifest.DatasetSize)),
                 RootHash = manifest.TreeCid,
                 Protected = manifest.Protected
             };
diff --git a/Tests/CodexReleaseTests/DataTests/LocalFilesTest.cs b/Tests/CodexReleaseTests/DataTests/LocalFilesTest.cs
index 4069aa49..8a69c834 100644
--- a/Tests/CodexReleaseTests/DataTests/LocalFilesTest.cs
+++ b/Tests/CodexReleaseTests/DataTests/LocalFilesTest.cs
@@ -33,9 +33,9 @@ namespace CodexReleaseTests.DataTests
             var local2 = localFiles.Content.Single(f => f.Cid == cid2);
 
             Assert.That(local1.Manifest.Protected, Is.False);
-            Assert.That(local1.Manifest.OriginalBytes, Is.EqualTo(size1));
+            Assert.That(local1.Manifest.DatasetSize, Is.EqualTo(size1));
             Assert.That(local2.Manifest.Protected, Is.False);
-            Assert.That(local2.Manifest.OriginalBytes, Is.EqualTo(size2));
+            Assert.That(local2.Manifest.DatasetSize, Is.EqualTo(size2));
         }
     }
 }
diff --git a/Tests/CodexReleaseTests/DataTests/ManifestOnlyDownloadTest.cs b/Tests/CodexReleaseTests/DataTests/ManifestOnlyDownloadTest.cs
index c55b3f8f..f1fcc84c 100644
--- a/Tests/CodexReleaseTests/DataTests/ManifestOnlyDownloadTest.cs
+++ b/Tests/CodexReleaseTests/DataTests/ManifestOnlyDownloadTest.cs
@@ -27,7 +27,7 @@ namespace CodexReleaseTests.DataTests
             Assert.That(spaceDiff, Is.LessThan(64.KB().SizeInBytes));
 
             Assert.That(localDataset.Cid, Is.EqualTo(cid));
-            Assert.That(localDataset.Manifest.OriginalBytes.SizeInBytes, Is.EqualTo(file.GetFilesize().SizeInBytes));
+            Assert.That(localDataset.Manifest.DatasetSize.SizeInBytes, Is.EqualTo(file.GetFilesize().SizeInBytes));
         }
     }
 }
diff --git a/Tests/CodexReleaseTests/DataTests/StreamlessDownloadTest.cs b/Tests/CodexReleaseTests/DataTests/StreamlessDownloadTest.cs
index d53d16dc..93b89f19 100644
--- a/Tests/CodexReleaseTests/DataTests/StreamlessDownloadTest.cs
+++ b/Tests/CodexReleaseTests/DataTests/StreamlessDownloadTest.cs
@@ -22,7 +22,7 @@ namespace CodexReleaseTests.DataTests
             var localDataset = downloader.DownloadStreamlessWait(cid, size);
 
             Assert.That(localDataset.Cid, Is.EqualTo(cid));
-            Assert.That(localDataset.Manifest.OriginalBytes.SizeInBytes, Is.EqualTo(file.GetFilesize().SizeInBytes));
+            Assert.That(localDataset.Manifest.DatasetSize.SizeInBytes, Is.EqualTo(file.GetFilesize().SizeInBytes));
 
             // Stop the uploader node and verify that the downloader has the data.
             uploader.Stop(waitTillStopped: true);
diff --git a/Tools/BiblioTech/CodexChecking/CodexTwoWayChecker.cs b/Tools/BiblioTech/CodexChecking/CodexTwoWayChecker.cs
index ac83ccd9..1dc6b681 100644
--- a/Tools/BiblioTech/CodexChecking/CodexTwoWayChecker.cs
+++ b/Tools/BiblioTech/CodexChecking/CodexTwoWayChecker.cs
@@ -163,7 +163,7 @@ namespace BiblioTech.CodexChecking
         private bool IsManifestLengthCompatible(ICheckResponseHandler handler, TransferCheck check, Manifest manifest)
         {
             var dataLength = check.UniqueData.Length;
-            var manifestLength = manifest.OriginalBytes.SizeInBytes;
+            var manifestLength = manifest.DatasetSize.SizeInBytes;
 
             Log($"Checking manifest length: dataLength={dataLength},manifestLength={manifestLength}");