diff --git a/changelogs/client_server/newsfragments/2357.clarification b/changelogs/client_server/newsfragments/2357.clarification
new file mode 100644
index 00000000..1df21e40
--- /dev/null
+++ b/changelogs/client_server/newsfragments/2357.clarification
@@ -0,0 +1,11 @@
+Fixes a typo in `/rooms/{roomId}/relations/{eventId}`.
+
+The specification says about the `from` request query parameter:
+
+> The pagination token to start returning results from. If not supplied, results start at the most recent topological event known to the server.
+>
+> Can be a `next_batch` or `prev_batch` token from a previous call, or a returned `start` token from `/messages`, or a `next_batch` token from `/sync`.
+
+The last part is wrong. It should be:
+
+> … or a `prev_batch` token from `/sync`.
diff --git a/data/api/client-server/relations.yaml b/data/api/client-server/relations.yaml
index c59c5cb0..12078c20 100644
--- a/data/api/client-server/relations.yaml
+++ b/data/api/client-server/relations.yaml
@@ -254,7 +254,7 @@ components:
 
         Can be a `next_batch` or `prev_batch` token from a previous call, or a returned
         `start` token from [`/messages`](/client-server-api/#get_matrixclientv3roomsroomidmessages),
-        or a `next_batch` token from [`/sync`](/client-server-api/#get_matrixclientv3sync).
+        or a `prev_batch` token from [`/sync`](/client-server-api/#get_matrixclientv3sync).
       required: false
       example: page2_token
       schema: