diff --git a/kqueen/middleware.py b/kqueen/middleware.py
index 00127bb4..f1985472 100644
--- a/kqueen/middleware.py
+++ b/kqueen/middleware.py
@@ -34,7 +34,6 @@ def record_request_data(response):
 def check_prometheus():
     is_gunicorn = "gunicorn" in os.environ.get("SERVER_SOFTWARE", "")
 
-
     if 'prometheus_multiproc_dir' in os.environ:
         os.makedirs(os.environ['prometheus_multiproc_dir'], exist_ok=True)
 
diff --git a/kqueen/tests/test_manual_cluster.py b/kqueen/tests/test_manual_cluster.py
index 48086e0b..7b3e9377 100644
--- a/kqueen/tests/test_manual_cluster.py
+++ b/kqueen/tests/test_manual_cluster.py
@@ -67,8 +67,6 @@ def create_cluster(self):
             content_type='application/json',
         )
 
-        content = response.data.decode(response.charset)
-
         assert response.status_code == 200
         self.cluster_id = response.json['id']