diff --git a/JitsiMeetJS.ts b/JitsiMeetJS.ts
index f7fb75cd00..249665bdef 100644
--- a/JitsiMeetJS.ts
+++ b/JitsiMeetJS.ts
@@ -76,7 +76,10 @@ interface ICreateLocalTrackOptions {
     resolution?: string;
 }
 
+type desktopSharingSourceType = 'screen' | 'window';
+
 interface IJitsiMeetJSOptions {
+    desktopSharingSources?: Array<desktopSharingSourceType>;
     enableAnalyticsLogging?: boolean;
     enableWindowOnErrorHandler?: boolean;
     externalStorage?: Storage;
@@ -470,7 +473,7 @@ export default {
 
     /**
      * Run a pre-call test to check the network conditions.
-     * 
+     *
      * @param {IceServer} iceServers  - The ICE servers to use for the test,
      * @returns {Promise<PreCallResult | any>} - A Promise that resolves with the test results or rejects with an error message.
      */