diff --git a/src/FilterLists.Services/Snapshot/Snapshot.cs b/src/FilterLists.Services/Snapshot/Snapshot.cs
index 327f76726..819ba0f8e 100644
--- a/src/FilterLists.Services/Snapshot/Snapshot.cs
+++ b/src/FilterLists.Services/Snapshot/Snapshot.cs
@@ -117,6 +117,7 @@ private async Task GetLines()
                     using (var memoryStream = new MemoryStream())
                     {
                         await stream.CopyToAsync(memoryStream);
+                        memoryStream.Position = 0;
                         await SaveChecksum(memoryStream);
                         if (await IsNewChecksum())
                         {