diff --git a/jam-ui/src/helpers/rest.js b/jam-ui/src/helpers/rest.js
index 8f5ab45a6..d042a0498 100644
--- a/jam-ui/src/helpers/rest.js
+++ b/jam-ui/src/helpers/rest.js
@@ -990,7 +990,7 @@ export const getChatMessages = async ({ channel, sessionId, before }) => {
  */
 export const sendChatMessage = async ({ channel, sessionId, message }) => {
   const body = { channel, message };
-  if (sessionId) body.session_id = sessionId;
+  if (sessionId) body.music_session = sessionId;
 
   const baseUrl = process.env.REACT_APP_API_BASE_URL;
   const response = await fetch(`${baseUrl}/chat`, {