diff --git a/mopidy_musicbox_webclient/static/js/controls.js b/mopidy_musicbox_webclient/static/js/controls.js
index 32a521e..6958376 100644
--- a/mopidy_musicbox_webclient/static/js/controls.js
+++ b/mopidy_musicbox_webclient/static/js/controls.js
@@ -630,6 +630,7 @@ function showFavourites() {
     });    
 }
 
+# TODO: Remove this upgrade path in next major release.
 function upgradeStreamUrisToFavourites() {
     toast('Converting streamUris...');
     $.cookie.json = true;