diff --git a/api/core/file/remote_fetcher.py b/api/core/file/remote_fetcher.py
index b5c067c5ba..5aa2d0538b 100644
--- a/api/core/file/remote_fetcher.py
+++ b/api/core/file/remote_fetcher.py
@@ -43,9 +43,7 @@ _UPLOAD_FILE_PATH_PATTERN = re.compile(
     r"^/files/(?P<file_id>[a-fA-F0-9-]+)/(?P<preview_kind>file-preview|image-preview)$"
 )
 _TOOL_FILE_PATH_PATTERN = re.compile(r"^/files/tools/(?P<file_id>[a-fA-F0-9-]+)\.(?P<extension>[^/]+)$")
-_DATASOURCE_FILE_PATH_PATTERN = re.compile(
-    r"^/files/datasources/(?P<file_id>[a-fA-F0-9-]+)\.(?P<extension>[^/]+)$"
-)
+_DATASOURCE_FILE_PATH_PATTERN = re.compile(r"^/files/datasources/(?P<file_id>[a-fA-F0-9-]+)\.(?P<extension>[^/]+)$")
 
 _file_access_controller = DatabaseFileAccessController()
 
diff --git a/api/tests/unit_tests/core/file/test_remote_fetcher.py b/api/tests/unit_tests/core/file/test_remote_fetcher.py
index c5a45ceec6..7165606db5 100644
--- a/api/tests/unit_tests/core/file/test_remote_fetcher.py
+++ b/api/tests/unit_tests/core/file/test_remote_fetcher.py
@@ -127,10 +127,7 @@ def test_invalid_signature_delegates_to_ssrf_proxy(monkeypatch):
     proxy_response = httpx.Response(403, request=httpx.Request("GET", "http://localhost:5001/bad"))
     ssrf_get = MagicMock(return_value=proxy_response)
     monkeypatch.setattr(remote_fetcher.ssrf_proxy, "get", ssrf_get)
-    url = (
-        f"http://localhost:5001/files/{UPLOAD_FILE_ID}/file-preview"
-        "?timestamp=1700000000&nonce=nonce&sign=bad"
-    )
+    url = f"http://localhost:5001/files/{UPLOAD_FILE_ID}/file-preview?timestamp=1700000000&nonce=nonce&sign=bad"
 
     response = remote_fetcher.get(url, timeout=3)