diff --git a/app/src/main/java/com/etesync/syncadapter/syncadapter/TasksSyncAdapterService.kt b/app/src/main/java/com/etesync/syncadapter/syncadapter/TasksSyncAdapterService.kt
index e1b31e9e..8059fb47 100644
--- a/app/src/main/java/com/etesync/syncadapter/syncadapter/TasksSyncAdapterService.kt
+++ b/app/src/main/java/com/etesync/syncadapter/syncadapter/TasksSyncAdapterService.kt
@@ -99,7 +99,7 @@ class TasksSyncAdapterService: SyncAdapterService() {
 
             // delete obsolete local calendar
             for (taskList in local) {
-                val url = taskList.name
+                val url = taskList.syncId
                 val collection = remote[url]
                 if (collection == null) {
                     Logger.log.fine("Deleting obsolete local taskList $url")