diff --git a/src/server/routers/note.ts b/src/server/routers/note.ts
index 086579f..c14d3c4 100644
--- a/src/server/routers/note.ts
+++ b/src/server/routers/note.ts
@@ -163,9 +163,9 @@ export const noteRouter = router({
     .mutation(async function ({ input, ctx }) {
       let { id, isArchived, type, attachments, content, isTop, isShare } = input
       if (content != null) {
-        content = content?.replace(/\\/g, '').replace(/ /g, ' ')
+        content = content?.replace(/ /g, ' ')
       }
-      const tagTree = helper.buildHashTagTreeFromHashString(extractHashtags(content + ' '))
+      const tagTree = helper.buildHashTagTreeFromHashString(extractHashtags(content?.replace(/\\/g, '') + ' '))
       let newTags: Prisma.tagCreateManyInput[] = []
       const handleAddTags = async (tagTree: TagTreeNode[], parentTag: Prisma.tagCreateManyInput | undefined, noteId?: number) => {
         for (const i of tagTree) {