diff --git a/hooks/gen_docs/gen_docs_contributing.py b/hooks/gen_docs/gen_docs_contributing.py
index 4d8767e90..7970b192b 100644
--- a/hooks/gen_docs/gen_docs_contributing.py
+++ b/hooks/gen_docs/gen_docs_contributing.py
@@ -1,4 +1,4 @@
-"""Copies ``CONTROBUTING.md`` from root to the docs"""
+"""Copies ``CONTROBUTING.md`` from root to the docs."""
 import shutil
 from pathlib import Path
 from tempfile import TemporaryFile
@@ -10,10 +10,12 @@
 
 # Copy `CONTRIBUTING.md` into the equivalent file in the docs,
 # adding a comment at the top which notes that the file is generated
-with TemporaryFile() as file_header:
+with (
+    TemporaryFile() as file_header,
+    DEST.open("w+b") as file_dest,
+    SOURCE.open("rb") as file_source,
+):
     file_header.write(HEADER)
     file_header.seek(0)
-    with DEST.open("w+b") as file_dest:
-        with SOURCE.open("rb") as file_source:
-            shutil.copyfileobj(file_header, file_dest)
-            shutil.copyfileobj(file_source, file_dest)
+    shutil.copyfileobj(file_header, file_dest)
+    shutil.copyfileobj(file_source, file_dest)