diff --git a/src/services/tldraw/syncService.ts b/src/services/tldraw/syncService.ts
index 655cd2b..21c31e2 100644
--- a/src/services/tldraw/syncService.ts
+++ b/src/services/tldraw/syncService.ts
@@ -66,14 +66,17 @@ export function createSyncConnectionOptions(options: SyncConnectionOptions) {
         }
     };
 
-    logger.info('sync-service', '🔄 Creating sync connection', { 
-        userId, 
-        displayName, 
-        roomId: effectiveRoomId 
+    logger.info('sync-service', '🔄 Creating sync connection', {
+        userId,
+        displayName,
+        roomId: effectiveRoomId
     });
 
+    const token = import.meta.env.VITE_TLSYNC_SECRET ?? ''
+    const tokenParam = token ? `?token=${encodeURIComponent(token)}` : ''
+
     return {
-        uri: `${baseUrl}/connect/${effectiveRoomId}`,
+        uri: `${baseUrl}/connect/${effectiveRoomId}${tokenParam}`,
         assets: multiplayerAssets,
         roomId: effectiveRoomId
     };
@@ -114,4 +117,3 @@ export function generateSharedRoomId(path: string): string {
     const sanitizedPath = path.replace(/[^a-zA-Z0-9]/g, '-');
     return `shared-${sanitizedPath}`;
 }
-