diff --git a/Sources/tart/OCI/Layerizer/DiskV2.swift b/Sources/tart/OCI/Layerizer/DiskV2.swift
index b49af3e..04e8c0c 100644
--- a/Sources/tart/OCI/Layerizer/DiskV2.swift
+++ b/Sources/tart/OCI/Layerizer/DiskV2.swift
@@ -106,6 +106,8 @@ class DiskV2: Disk {
             progress.completedUnitCount += Int64(data.count)
           }
 
+          try filter.finalize()
+
           try disk.close()
         }