diff --git a/pre_commit/commands/run.py b/pre_commit/commands/run.py
index 8d99f3aa..22827b7a 100644
--- a/pre_commit/commands/run.py
+++ b/pre_commit/commands/run.py
@@ -189,8 +189,8 @@ def _run_single_hook(
         if not hook.pass_filenames:
             filenames = ()
         elif hook.use_filesnames_file:
-            filenames_file = tempfile.NamedTemporaryFile("w+")
-            filenames_file.write("\n".join(filenames))
+            filenames_file = tempfile.NamedTemporaryFile('w+')
+            filenames_file.write('\n'.join(filenames))
             filenames = (f"@{filenames_file}",)
 
         time_before = time.monotonic()
diff --git a/tests/commands/run_test.py b/tests/commands/run_test.py
index 676d5fb5..91b104e6 100644
--- a/tests/commands/run_test.py
+++ b/tests/commands/run_test.py
@@ -1085,8 +1085,8 @@ def test_use_filesnames_file(
         cap_out, store, repo_with_passing_hook, run_opts(verbose=True),
     )
     out_lines = printed.splitlines()
-    out_lines[-1] == b"Hello World"
-    assert out_lines[-2].startswith(b"@") == use_filesnames_file
+    out_lines[-1] == b'Hello World'
+    assert out_lines[-2].startswith(b'@') == use_filesnames_file
 
 
 def test_fail_fast(cap_out, store, repo_with_failing_hook):