diff --git a/slack_support/directory.py b/slack_support/directory.py
index 81998b3..93aaeb6 100644
--- a/slack_support/directory.py
+++ b/slack_support/directory.py
@@ -23,4 +23,6 @@ def load() -> dict[str, list[Person]]:  # topic -> list of people
 
     topics = set([topic for person in ppl for topic in person.topics])
 
-    return {topic: [person for person in ppl if topic in person.topics] for topic in topics}
+    return {
+        topic: [person for person in ppl if topic in person.topics] for topic in topics
+    }