diff --git a/src/onc/modules/_OncDelivery.py b/src/onc/modules/_OncDelivery.py
index 59d4139..bc210b2 100644
--- a/src/onc/modules/_OncDelivery.py
+++ b/src/onc/modules/_OncDelivery.py
@@ -387,7 +387,8 @@ def _printProductOrderStats(self, fileList: list, runInfo: dict):
             print(f"Total download Time: {txtDownTime}")
 
             # Print size and count of files
-            print(f"{downloadCount} files ({humanize.naturalsize(size)}) downloaded")
+            natural_size = humanize.naturalsize(size, binary=True)
+            print(f"{downloadCount} files ({natural_size}) downloaded")
         else:
             print("No files downloaded.")
 
diff --git a/src/onc/modules/_util.py b/src/onc/modules/_util.py
index 37c1a8c..16db3fb 100644
--- a/src/onc/modules/_util.py
+++ b/src/onc/modules/_util.py
@@ -24,7 +24,7 @@ def saveAsFile(
         raise FileExistsError(filePath)
 
     start = time.time()
-    size = 0
+    size = len(response.content)
     with open(filePath, "wb") as file:
         file.write(response.content)
 
diff --git a/tests/data_product_delivery/test_data_product_delivery_order.py b/tests/data_product_delivery/test_data_product_delivery_order.py
index 17ff728..7b16df2 100644
--- a/tests/data_product_delivery/test_data_product_delivery_order.py
+++ b/tests/data_product_delivery/test_data_product_delivery_order.py
@@ -40,6 +40,8 @@ def test_valid_no_metadata(requester, params, expected_keys_download_results, ut
     assert data["downloadResults"][0]["index"] == "1"
     assert data["downloadResults"][0]["downloaded"] is True
 
+    assert data["stats"]["totalSize"] != 0
+
     assert util.get_download_files_num(requester) == 2, "The first two are png files."
 
     util.assert_dict_key_types(