diff --git a/backend/fluksio/api/routes/flows.py b/backend/fluksio/api/routes/flows.py
index 9c4a9ae..c737b17 100644
--- a/backend/fluksio/api/routes/flows.py
+++ b/backend/fluksio/api/routes/flows.py
@@ -1076,8 +1076,8 @@ async def flow_events(websocket: WebSocket, token: str = "") -> None:
                     receiver = asyncio.create_task(websocket.receive_text())
                     if sender not in done:
                         continue
-                elif sender not in done:
-                    continue
+                # `sender` is done from here: `FIRST_COMPLETED` returns with at
+                # least one of the two, so `receiver` missing means this one is.
 
                 # Everything the bus has right now, not just the one event
                 # that woke this: a cascade puts a dozen in at once, and one