diff --git a/python/hopsworks/core/opensearch_api.py b/python/hopsworks/core/opensearch_api.py
index 5589400fd..bfbc6c1e3 100644
--- a/python/hopsworks/core/opensearch_api.py
+++ b/python/hopsworks/core/opensearch_api.py
@@ -33,13 +33,17 @@ def __init__(
 
     def _get_opensearch_url(self):
         if isinstance(client.get_instance(), client.external.Client):
-            external_domain = self._variable_api.get_variable("loadbalancer_external_domain")
+            external_domain = self._variable_api.get_variable(
+                "loadbalancer_external_domain"
+            )
             if external_domain == "":
                 # fallback to use hostname of head node
                 external_domain = client.get_instance().host
             return f"https://{external_domain}:9200"
         else:
-            service_discovery_domain = self._variable_api.get_variable("service_discovery_domain")
+            service_discovery_domain = self._variable_api.get_variable(
+                "service_discovery_domain"
+            )
             if service_discovery_domain == "":
                 raise OpenSearchException(
                     "Client could not locate service_discovery_domain "