diff --git a/src/java/davmail/caldav/CaldavConnection.java b/src/java/davmail/caldav/CaldavConnection.java
index a3632ca4..eb95b276 100644
--- a/src/java/davmail/caldav/CaldavConnection.java
+++ b/src/java/davmail/caldav/CaldavConnection.java
@@ -521,11 +521,12 @@ public class CaldavConnection extends AbstractConnection {
             List<ExchangeSession.Event> events = session.getAllEvents(folderPath);
             DavGatewayTray.debug(new BundleMessage("LOG_FOUND_CALENDAR_EVENTS", events.size()));
             appendEventsResponses(response, request, events);
-            // TODO append sub calendars
+            // TODO: does not work with iCal3
+            /*
             List<ExchangeSession.Folder> folderList = session.getSubCalendarFolders(folderPath, false);
             for (ExchangeSession.Folder folder : folderList) {
                 appendCalendar(response, request, folder.folderPath.substring(folder.folderPath.indexOf('/') + 1));
-            }
+            }*/
         }
         response.endMultistatus();
         response.close();