diff --git a/services/Archival/FilterLists.Archival.Infrastructure/Persistence/GitFileArchiver.cs b/services/Archival/FilterLists.Archival.Infrastructure/Persistence/GitFileArchiver.cs
index 0f6a3e169..4e172b37f 100644
--- a/services/Archival/FilterLists.Archival.Infrastructure/Persistence/GitFileArchiver.cs
+++ b/services/Archival/FilterLists.Archival.Infrastructure/Persistence/GitFileArchiver.cs
@@ -26,9 +26,9 @@ public async Task ArchiveFileAsync(
             string filePath,
             CancellationToken cancellationToken = default)
         {
+            _filePaths.Add(filePath);
             await using var output = File.OpenWrite(filePath);
             await fileContents.CopyToAsync(output, cancellationToken);
-            _filePaths.Add(filePath);
         }
 
         public void Commit()