diff --git a/lib/models/note.js b/lib/models/note.js
index 05babb4..3577d40 100644
--- a/lib/models/note.js
+++ b/lib/models/note.js
@@ -114,11 +114,14 @@ module.exports = function (sequelize, DataTypes) {
                                     // then will update the doc in db
                                     var fsModifiedTime = moment(fs.statSync(filePath).mtime);
                                     var dbModifiedTime = moment(note.lastchangeAt || note.createdAt);
-                                    if (fsModifiedTime.isAfter(dbModifiedTime)) {
-                                        var body = fs.readFileSync(filePath, 'utf8');
+                                    var body = fs.readFileSync(filePath, 'utf8');
+                                    var title = Note.parseNoteTitle(body);
+                                    body = LZString.compressToBase64(body);
+                                    title = LZString.compressToBase64(title);
+                                    if (fsModifiedTime.isAfter(dbModifiedTime) && note.content !== body) {
                                         note.update({
-                                            title: LZString.compressToBase64(Note.parseNoteTitle(body)),
-                                            content: LZString.compressToBase64(body),
+                                            title: title,
+                                            content: body,
                                             lastchangeAt: fsModifiedTime
                                         }).then(function (note) {
                                             sequelize.models.Revision.saveNoteRevision(note, function (err, revision) {