diff --git a/src/modules/convert/api.ts b/src/modules/convert/api.ts
index c663e7b..699a8d8 100644
--- a/src/modules/convert/api.ts
+++ b/src/modules/convert/api.ts
@@ -59,6 +59,7 @@ async function note2md(
   options: {
     keepNoteLink?: boolean;
     withYAMLHeader?: boolean;
+    cachedYAMLHeader?: Record<string, any>;
     skipSavingImages?: boolean;
   } = {},
 ) {
@@ -102,22 +103,25 @@ async function note2md(
   }
 
   if (options.withYAMLHeader) {
-    let header = {};
+    let header = {} as Record<string, any>;
     try {
-      header = JSON.parse(
-        await addon.api.template.runTemplate(
-          "[ExportMDFileHeaderV2]",
-          "noteItem",
-          [noteItem],
+      header = Object.assign(
+        JSON.parse(
+          await addon.api.template.runTemplate(
+            "[ExportMDFileHeaderV2]",
+            "noteItem",
+            [noteItem],
+          ),
         ),
+        options.cachedYAMLHeader || {},
       );
     } catch (e) {
       ztoolkit.log(e);
     }
     Object.assign(header, {
-      version: noteItem.version,
-      libraryID: noteItem.libraryID,
-      itemKey: noteItem.key,
+      $version: noteItem.version,
+      $libraryID: noteItem.libraryID,
+      $itemKey: noteItem.key,
     });
     const yamlFrontMatter = `---\n${YAML.stringify(header, 10)}\n---`;
     md = `${yamlFrontMatter}\n${md}`;
diff --git a/src/modules/export/markdown.ts b/src/modules/export/markdown.ts
index 1bfb601..3b33186 100644
--- a/src/modules/export/markdown.ts
+++ b/src/modules/export/markdown.ts
@@ -31,7 +31,11 @@ export async function saveMD(
   });
 }
 
-export async function syncMDBatch(saveDir: string, noteIds: number[]) {
+export async function syncMDBatch(
+  saveDir: string,
+  noteIds: number[],
+  metaList?: Record<string, any>[],
+) {
   const noteItems = Zotero.Items.get(noteIds);
   await IOUtils.makeDirectory(saveDir);
   const attachmentsDir = jointPath(
@@ -44,12 +48,14 @@ export async function syncMDBatch(saveDir: string, noteIds: number[]) {
   if (hasImage) {
     await IOUtils.makeDirectory(attachmentsDir);
   }
+  let i = 0;
   for (const noteItem of noteItems) {
     const filename = await addon.api.sync.getMDFileName(noteItem.id, saveDir);
     const filePath = jointPath(saveDir, filename);
     const content = await addon.api.convert.note2md(noteItem, saveDir, {
       keepNoteLink: false,
       withYAMLHeader: true,
+      cachedYAMLHeader: metaList?.[i],
     });
     await Zotero.File.putContentsAsync(filePath, content);
     addon.api.sync.updateSyncStatus(noteItem.id, {
@@ -63,5 +69,6 @@ export async function syncMDBatch(saveDir: string, noteIds: number[]) {
       noteMd5: Zotero.Utilities.Internal.md5(noteItem.getNote(), false),
       lastsync: new Date().getTime(),
     });
+    i += 1;
   }
 }
diff --git a/src/modules/import/markdown.ts b/src/modules/import/markdown.ts
index 98593a8..4ec7efd 100644
--- a/src/modules/import/markdown.ts
+++ b/src/modules/import/markdown.ts
@@ -20,9 +20,9 @@ export async function fromMD(
   let noteItem = options.noteId ? Zotero.Items.get(options.noteId) : undefined;
   if (
     !options.ignoreVersion &&
-    typeof mdStatus.meta?.version === "number" &&
+    typeof mdStatus.meta?.$version === "number" &&
     typeof noteItem?.version === "number" &&
-    mdStatus.meta?.version < noteItem?.version
+    mdStatus.meta?.$version < noteItem?.version
   ) {
     if (
       !window.confirm(
diff --git a/src/modules/sync/api.ts b/src/modules/sync/api.ts
index 9b642f1..8060e86 100644
--- a/src/modules/sync/api.ts
+++ b/src/modules/sync/api.ts
@@ -109,7 +109,7 @@ function getMDStatusFromContent(contentRaw: string): MDStatus {
   contentRaw = contentRaw.replace(/\r\n/g, "\n");
   const result = contentRaw.match(/^---\n(.*\n)+?---$/gm);
   const ret: MDStatus = {
-    meta: { version: -1 },
+    meta: { $version: -1 },
     content: contentRaw,
     filedir: "",
     filename: "",
diff --git a/src/modules/sync/diffWindow.ts b/src/modules/sync/diffWindow.ts
index f4714ae..c031556 100644
--- a/src/modules/sync/diffWindow.ts
+++ b/src/modules/sync/diffWindow.ts
@@ -133,7 +133,7 @@ export async function showSyncDiff(noteId: number, mdPath: string) {
           autoSyncDelay: Zotero.Notes.AUTO_SYNC_DELAY,
         },
       });
-      await addon.api.$export.syncMDBatch(mdStatus.filedir, [noteItem.id]);
+      await addon.api.$export.syncMDBatch(mdStatus.filedir, [noteItem.id], [mdStatus.meta]);
       break;
     default:
       break;
diff --git a/src/modules/sync/hooks.ts b/src/modules/sync/hooks.ts
index 001f2f3..8f5a3a7 100644
--- a/src/modules/sync/hooks.ts
+++ b/src/modules/sync/hooks.ts
@@ -98,11 +98,15 @@ async function callSyncing(
     const toExport = {} as Record<string, number[]>;
     const toImport: SyncStatus[] = [];
     const toDiff: SyncStatus[] = [];
+    const mdStatusMap = {} as Record<number, MDStatus>;
     let i = 1;
     for (const item of items) {
       const syncStatus = addon.api.sync.getSyncStatus(item.id);
       const filepath = syncStatus.path;
-      const compareResult = await doCompare(item);
+      const mdStatus = await addon.api.sync.getMDStatus(item.id);
+      mdStatusMap[item.id] = mdStatus;
+
+      const compareResult = await doCompare(item, mdStatus);
       switch (compareResult) {
         case SyncCode.NoteAhead:
           if (Object.keys(toExport).includes(filepath)) {
@@ -138,7 +142,12 @@ async function callSyncing(
         } ...`,
         progress: ((i - 1) / items.length) * 100,
       });
-      await addon.api.$export.syncMDBatch(filepath, toExport[filepath]);
+      const itemIDs = toExport[filepath];
+      await addon.api.$export.syncMDBatch(
+        filepath,
+        itemIDs,
+        itemIDs.map((id) => mdStatusMap[id].meta!),
+      );
       i += 1;
     }
     i = 1;
@@ -154,7 +163,11 @@ async function callSyncing(
       const filepath = jointPath(syncStatus.path, syncStatus.filename);
       await addon.api.$import.fromMD(filepath, { noteId: item.id });
       // Update md file to keep the metadata synced
-      await addon.api.$export.syncMDBatch(syncStatus.path, [item.id]);
+      await addon.api.$export.syncMDBatch(
+        syncStatus.path,
+        [item.id],
+        [mdStatusMap[item.id].meta!],
+      );
       i += 1;
     }
     i = 1;
@@ -193,20 +206,22 @@ async function callSyncing(
   addon.data.sync.lock = false;
 }
 
-async function doCompare(noteItem: Zotero.Item): Promise<SyncCode> {
+async function doCompare(
+  noteItem: Zotero.Item,
+  mdStatus: MDStatus,
+): Promise<SyncCode> {
   const syncStatus = addon.api.sync.getSyncStatus(noteItem.id);
-  const MDStatus = await addon.api.sync.getMDStatus(noteItem.id);
   // No file found
-  if (!MDStatus.meta) {
+  if (!mdStatus.meta) {
     return SyncCode.NoteAhead;
   }
   // File meta is unavailable
-  if (MDStatus.meta.version < 0) {
+  if (mdStatus.meta.$version < 0) {
     return SyncCode.NeedDiff;
   }
   let MDAhead = false;
   let noteAhead = false;
-  const md5 = Zotero.Utilities.Internal.md5(MDStatus.content, false);
+  const md5 = Zotero.Utilities.Internal.md5(mdStatus.content, false);
   const noteMd5 = Zotero.Utilities.Internal.md5(noteItem.getNote(), false);
   // MD5 doesn't match (md side change)
   if (md5 !== syncStatus.md5) {
@@ -218,7 +233,7 @@ async function doCompare(noteItem: Zotero.Item): Promise<SyncCode> {
   }
   // Note version doesn't match (note side change)
   // This might be unreliable when Zotero account is not login
-  if (Number(MDStatus.meta.version) !== noteItem.version) {
+  if (Number(mdStatus.meta.$version) !== noteItem.version) {
     noteAhead = true;
   }
   if (noteAhead && MDAhead) {
diff --git a/typings/note.d.ts b/typings/note.d.ts
index dc41334..5ecf81c 100644
--- a/typings/note.d.ts
+++ b/typings/note.d.ts
@@ -25,7 +25,9 @@ declare interface SyncStatus {
 
 declare interface MDStatus {
   meta: {
-    version: number;
+    $version: number;
+    $libraryID?: number;
+    $itemKey?: string;
   } | null;
   content: string;
   filedir: string;