diff --git a/src/fromager/sdist.py b/src/fromager/sdist.py
index 92861c1c..8d6a838d 100644
--- a/src/fromager/sdist.py
+++ b/src/fromager/sdist.py
@@ -311,7 +311,7 @@ def download_wheel(
     wheel_filename = output_directory / os.path.basename(urlparse(wheel_url).path)
     if not wheel_filename.exists():
         logger.info(f"{req.name}: downloading pre-built wheel {wheel_url}")
-        wheel_filename = _download_wheel_check(output_directory, wheel_url, ctx)
+        wheel_filename = _download_wheel_check(ctx, output_directory, wheel_url)
         logger.info(f"{req.name}: saved wheel to {wheel_filename}")
     else:
         logger.info(f"{req.name}: have existing wheel {wheel_filename}")
@@ -321,8 +321,8 @@ def download_wheel(
 
 # Helper method to check whether the .whl file is a zip file and has contents in it.
 # It will throw BadZipFile exception if any other file is encountered. Eg: index.html
-def _download_wheel_check(destination_dir, wheel_url, ctx):
-    wheel_filename = sources.download_url(destination_dir, wheel_url, ctx)
+def _download_wheel_check(ctx, destination_dir, wheel_url):
+    wheel_filename = sources.download_url(ctx, destination_dir, wheel_url)
     wheel_directory_contents = zipfile.ZipFile(wheel_filename).namelist()
     if not wheel_directory_contents:
         raise zipfile.BadZipFile(f"Empty zip file encountered: {wheel_filename}")
diff --git a/src/fromager/sources.py b/src/fromager/sources.py
index aec90ba6..0d8d0e56 100644
--- a/src/fromager/sources.py
+++ b/src/fromager/sources.py
@@ -164,7 +164,7 @@ def default_download_source(
     )
 
     source_filename = _download_source_check(
-        ctx.sdists_downloads, url, ctx, destination_filename
+        ctx, ctx.sdists_downloads, url, destination_filename
     )
 
     logger.debug(
@@ -176,12 +176,12 @@ def default_download_source(
 # Helper method to check whether .zip /.tar / .tgz is able to extract and check its content.
 # It will throw exception if any other file is encountered. Eg: index.html
 def _download_source_check(
+    ctx: context.WorkContext,
     destination_dir: pathlib.Path,
     url: str,
-    ctx: context.WorkContext,
     destination_filename: str | None = None,
 ) -> str:
-    source_filename = download_url(destination_dir, url, ctx, destination_filename)
+    source_filename = download_url(ctx, destination_dir, url, destination_filename)
     if source_filename.suffix == ".zip":
         source_file_contents = zipfile.ZipFile(source_filename).namelist()
         if not source_file_contents:
@@ -199,9 +199,9 @@ def _download_source_check(
 
 
 def download_url(
+    ctx: context.WorkContext,
     destination_dir: pathlib.Path,
     url: str,
-    ctx: context.WorkContext,
     destination_filename: str | None = None,
 ) -> pathlib.Path:
     basename = (
diff --git a/tests/test_sdist.py b/tests/test_sdist.py
index f26a0646..91b5c2d0 100644
--- a/tests/test_sdist.py
+++ b/tests/test_sdist.py
@@ -59,4 +59,4 @@ def test_invalid_wheel_file_exception(mock_download_url, tmp_path: pathlib.Path)
     text_file = fake_dir / "fake_wheel.txt"
     text_file.write_text("This is a test file")
     with pytest.raises(zipfile.BadZipFile):
-        sdist._download_wheel_check(fake_dir, fake_url, tmp_context)
+        sdist._download_wheel_check(tmp_context, fake_dir, fake_url)
diff --git a/tests/test_sources.py b/tests/test_sources.py
index e5ca2b18..b7bb093e 100644
--- a/tests/test_sources.py
+++ b/tests/test_sources.py
@@ -18,7 +18,7 @@ def test_invalid_tarfile(
     text_file = fake_dir / "fake_wheel.txt"
     text_file.write_text("This is a test file")
     with pytest.raises(TypeError):
-        sources._download_source_check(fake_dir, fake_url, tmp_context)
+        sources._download_source_check(tmp_context, fake_dir, fake_url)
 
 
 @patch("fromager.sources.resolve_dist")
@@ -43,7 +43,7 @@ def test_default_download_source_from_settings(
 
     resolve_dist.assert_called_with(tmp_context, req, sdist_server_url, True, False)
     download_source_check.assert_called_with(
-        tmp_context.sdists_downloads, "predefined_url-1.0", tmp_context, "foo-1.0"
+        tmp_context, tmp_context.sdists_downloads, "predefined_url-1.0", "foo-1.0"
     )