diff --git a/src/modules/sync/api.ts b/src/modules/sync/api.ts
index 6f657a5..67ab89f 100644
--- a/src/modules/sync/api.ts
+++ b/src/modules/sync/api.ts
@@ -35,7 +35,10 @@ function initSyncList() {
 }
 
 async function getSyncNoteIds() {
-  const keys = addon.data.sync.data?.getKeys();
+  const keys = addon.data.sync.data
+    ?.getKeys()
+    .map((key) => Number(key))
+    .filter((key) => !!key);
   if (!keys) {
     return [];
   }