diff --git a/tests/Bonsai.ML.Lds.Python.Tests/ReceptiveFieldSimpleCellTest.cs b/tests/Bonsai.ML.Lds.Python.Tests/ReceptiveFieldSimpleCellTest.cs
index 26188e3e..61de29a4 100644
--- a/tests/Bonsai.ML.Lds.Python.Tests/ReceptiveFieldSimpleCellTest.cs
+++ b/tests/Bonsai.ML.Lds.Python.Tests/ReceptiveFieldSimpleCellTest.cs
@@ -28,6 +28,7 @@ private static void DownloadData(string basePath)
             byte[] responseBytes;
             using (var httpClient = new HttpClient())
             {
+                httpClient.DefaultRequestHeaders.Add("User-Agent", "Bonsai.ML.Tests");
                 responseBytes = httpClient.GetByteArrayAsync(zipFileUrl).Result;
                 Console.WriteLine("File downloaded successfully.");
             }