diff --git a/tools/sync_doc_repo.py b/tools/sync_doc_repo.py
index 5e1e72c6..d9531b4e 100644
--- a/tools/sync_doc_repo.py
+++ b/tools/sync_doc_repo.py
@@ -113,7 +113,13 @@ def process_repositories(args, service):
 
         source_path = pathlib.Path(copy_from, doc["rst_location"])
         target_path = pathlib.Path(copy_to, doc["rst_location"])
-        sync(source_path, target_path, purge=True, create=True, exclude=['conf.py'])
+        sync(
+            source_path,
+            target_path,
+            purge=True,
+            create=True,
+            exclude=['conf.py']
+        )
         repo_to.index.add([doc["rst_location"]])
         if len(repo_to.index.diff("HEAD")) == 0:
             # Nothing to commit