diff --git a/jam-ui/src/components/client/JKSessionScreen.js b/jam-ui/src/components/client/JKSessionScreen.js
index 1ad846c16..643e044b4 100644
--- a/jam-ui/src/components/client/JKSessionScreen.js
+++ b/jam-ui/src/components/client/JKSessionScreen.js
@@ -876,8 +876,12 @@ const JKSessionScreen = () => {
       const currentRecordingId = recording.id;
       // console.debug("Recording started with ID: ", currentRecordingId);
       const groupedTracks = groupTracksToClient(recording);
+      // Unpack params for C++ client (matches legacy recordingModel.js signature)
+      const recordVideo = params.videoType || 0;
+      const recordChat = params.recordChat ? 1 : 0;
+      const recordFramerate = 0;
       try {
-        await jamClient.StartMediaRecording(currentRecordingId, groupedTracks, params);
+        await jamClient.StartRecording(currentRecordingId, groupedTracks, recordVideo, recordChat, recordFramerate);
       } catch (error) {
         // console.error("Error starting media recording:", error);
       }