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-rw-r--r--guides/source/action_cable_overview.md6
1 files changed, 3 insertions, 3 deletions
diff --git a/guides/source/action_cable_overview.md b/guides/source/action_cable_overview.md
index a66a8ff484..99173982b8 100644
--- a/guides/source/action_cable_overview.md
+++ b/guides/source/action_cable_overview.md
@@ -240,9 +240,9 @@ WebNotificationsChannel.broadcast_to(
```
The `WebNotificationsChannel.broadcast_to` call places a message in the current
-subscription adapter (Redis by default)'s pubsub queue under a separate
-broadcasting name for each user. For a user with an ID of 1, the broadcasting
-name would be `web_notifications:1`.
+subscription adapter (by default `redis` for production and `async` for development & test)'s
+pubsub queue under a separate broadcasting name for each user. For a user with an ID of 1,
+the broadcasting name would be `web_notifications:1`.
The channel has been instructed to stream everything that arrives at
`web_notifications:1` directly to the client by invoking the `received`