diff --git a/backend/src/spectre_server/services/batches.py b/backend/src/spectre_server/services/batches.py
index c70a3a3..0004b14 100644
--- a/backend/src/spectre_server/services/batches.py
+++ b/backend/src/spectre_server/services/batches.py
@@ -100,7 +100,7 @@ def get_batch_files(
                 if batch.has_file(extension):
                     batch_file = batch.get_file(extension)
                     batch_files.append(batch_file.file_path)
-    return batch_files
+    return sorted(batch_files)
 
 
 @log_call