diff --git a/repo2docker/contentproviders/dataverse.py b/repo2docker/contentproviders/dataverse.py
index 1998f6be..9054f53c 100644
--- a/repo2docker/contentproviders/dataverse.py
+++ b/repo2docker/contentproviders/dataverse.py
@@ -102,11 +102,18 @@ class Dataverse(DoiProvider):
 
         for fobj in deep_get(record, "latestVersion.files"):
             file_url = (
-                f'{host["url"]}/api/access/datafile/{deep_get(fobj, "dataFile.id")}'
+                # without format=original you get the preservation format (plain text, tab separated)
+                f'{host["url"]}/api/access/datafile/{deep_get(fobj, "dataFile.id")}?format=original'
             )
-            filename = os.path.join(fobj.get("directoryLabel", ""), fobj["label"])
+            filename = fobj["label"]
+            original_filename = fobj["dataFile"].get("originalFileName", None)
+            if original_filename:
+                # replace preservation format filename (foo.tab) with original filename (foo.dta)
+                filename = original_filename
 
-            file_ref = {"download": file_url, "filename": filename}
+            filename_with_path = os.path.join(fobj.get("directoryLabel", ""), filename)
+
+            file_ref = {"download": file_url, "filename": filename_with_path}
             fetch_map = {key: key for key in file_ref.keys()}
 
             yield from self.fetch_file(file_ref, fetch_map, output_dir)
diff --git a/tests/unit/contentproviders/test_dataverse.py b/tests/unit/contentproviders/test_dataverse.py
index 1603b9cd..c5c0d1cb 100644
--- a/tests/unit/contentproviders/test_dataverse.py
+++ b/tests/unit/contentproviders/test_dataverse.py
@@ -5,6 +5,7 @@ from io import BytesIO
 from tempfile import TemporaryDirectory
 from unittest.mock import patch
 from urllib.request import Request, urlopen
+from urllib.parse import urlsplit
 
 import pytest
 
@@ -131,7 +132,8 @@ def test_dataverse_fetch(dv_files, requests_mock):
     spec = {"host": harvard_dv, "record": "doi:10.7910/DVN/6ZXAGT"}
 
     def mock_filecontent(req, context):
-        file_no = int(req.url.split("/")[-1]) - 1
+        parts = urlsplit(req.url)
+        file_no = int(parts.path.split("/")[-1]) - 1
         return open(dv_files[file_no], "rb").read()
 
     requests_mock.get(