diff --git a/shapeworks_cloud/manage_workers.py b/shapeworks_cloud/manage_workers.py
index 8e1f77de..eaf2880b 100644
--- a/shapeworks_cloud/manage_workers.py
+++ b/shapeworks_cloud/manage_workers.py
@@ -21,8 +21,8 @@ def inspect_queue(queue_name):
                 # Override manager hostname and vhost in production;
                 # CloudAMQP management not served through dedicated port and must use https
                 # and vhost is assigned name of user (instead of using default '/')
-                manager.http.base_url = manager.http.base_url.replace(":15672", "").replace(
-                    "http", "https"
+                manager.http.base_url = manager.http.base_url.replace(':15672', '').replace(
+                    'http', 'https'
                 )
                 vhost = manager.user
             queue = manager.get_queue(vhost, queue_name)