diff --git a/fern/calls/websocket-transport.mdx b/fern/calls/websocket-transport.mdx
index 724cbaddb..c3accb0dc 100644
--- a/fern/calls/websocket-transport.mdx
+++ b/fern/calls/websocket-transport.mdx
@@ -25,7 +25,7 @@ curl 'https://api.vapi.ai/call' \
   -H 'authorization: Bearer YOUR_API_KEY' \
   -H 'content-type: application/json' \
   --data-raw '{
-    "assistant": { "assistantId": "YOUR_ASSISTANT_ID" },
+    "assistantId": "YOUR_ASSISTANT_ID",
     "transport": {
       "provider": "vapi.websocket",
       "audioFormat": {