diff --git a/tests/discourse/functional/test_create_topic.py b/tests/discourse/functional/test_create_topic.py
index abf7212..fbadcef 100644
--- a/tests/discourse/functional/test_create_topic.py
+++ b/tests/discourse/functional/test_create_topic.py
@@ -36,8 +36,11 @@ def test_create_topic_roundtrip(live_app):
     hdrs = _discourse.admin_headers(api_key, api_user)
 
     # 3) Create a topic with a unique marker in title + body (raw must be >= ~20 chars).
+    # Discourse's `title_prettify` (on by default) capitalises the title's first letter, so we send a
+    # title that already starts capitalised — that normalisation is then a no-op and the exact-equality
+    # round-trip below stays faithful (the unique hex token is mid-string, untouched either way).
     uniq = uuid.uuid4().hex[:10]
-    title = f"ccci topic {uniq}"
+    title = f"CCCI topic {uniq}"
     marker = f"ccci-body-marker-{uniq}-roundtrip-padding-text"
     status, body = harness_http.http_post(
         f"{base}/posts.json",