diff --git a/jellyfinstats/__main__.py b/jellyfinstats/__main__.py
index 33ba6f4..3d34f6c 100644
--- a/jellyfinstats/__main__.py
+++ b/jellyfinstats/__main__.py
@@ -1,7 +1,11 @@
 from argparse import ArgumentParser
 from os.path import join
 from . import _
-from .audio import prepare_audio_map, generate_audio_report
+from .audio import (
+    prepare_audio_map,
+    generate_audio_report,
+    fix_audio_report_library,
+)
 from .cache import IdRelativeCache
 from .config import Config
 from .db import PlaybackReportingDb, LibraryDb, JellyfinDb
@@ -15,9 +19,12 @@ p.add_argument("--jellyfin-data-dir", help=_("The path to jellyfin data director
 p.add_argument("--output-dir", help=_("The directory for output files."))
 p.add_argument("--ask-page-size", help=_("Specify maximum items to display in one page."), type=int)  # noqa: E501
 p.add_argument("--jellyfin-db", help=_("The path to jellyfin.db"))
+p.add_argument("--fix", help=_("Fix incorrect play duration."), action='store_true', default=False)  # noqa: E501
 arg = p.parse_intermixed_args()
 cfg = Config(arg.config, arg)
 with PlaybackReportingDb(cfg.playback_reporting_db) as pdb:
+    if arg.fix:
+        fix_audio_report_library(pdb)
     with LibraryDb(cfg.library_db) as ldb:
         with IdRelativeCache(cfg.output_dir) as icache:
             with JellyfinDb(cfg.jellyfin_db) as jdb:
@@ -30,4 +37,5 @@ with PlaybackReportingDb(cfg.playback_reporting_db) as pdb:
                     output = join(cfg.output_dir, 'audio', username)
                     maxDate = u['MaxDate']
                     minDate = u['MinDate']
-                    generate_audio_report(pdb, re[0], re[1], re[2], output, userid)
+                    generate_audio_report(
+                        pdb, re[0], re[1], re[2], output, userid)
diff --git a/jellyfinstats/audio.py b/jellyfinstats/audio.py
index 3f7bbbf..80ca03e 100644
--- a/jellyfinstats/audio.py
+++ b/jellyfinstats/audio.py
@@ -8,7 +8,7 @@ from datetime import datetime
 from re import compile
 from os import makedirs
 from os.path import join
-from math import floor
+from math import ceil, floor
 
 
 ITEMNAME_PATTERN = compile(r'(?P<album_artist>.*) - (?P<track>.*) \((?P<album>.*)\)')  # noqa: E501
@@ -405,3 +405,31 @@ def generate_audio_report(pdb: PlaybackReportingDb, itemMap, rowMap, albumMap,
         for artist in alArtCountMap:
             count = alArtCountMap[artist]
             alAr.write(artist, count['count'], count['play_count'], format_duration(count['duration']), count['duration'])  # noqa: E501
+
+
+def fix_audio_report_library(pdb: PlaybackReportingDb):
+    clients = pdb.get_client_devices()
+    for client in clients:
+        clientName = client['ClientName']
+        deviceName = client['DeviceName']
+        prev = None
+        offset = 0
+        data = pdb.get_activitys(offset, itemType='Audio',
+                                 clientName=clientName,
+                                 deviceName=deviceName)
+        while len(data) > 0:
+            for i in data:
+                if prev is None:
+                    prev = i
+                    continue
+                delta = ceil(parse_time(
+                    i['DateCreated']) - parse_time(prev['DateCreated']))
+                dur = prev['PlayDuration']
+                if delta < dur - 1:
+                    print(f'Change song(id={prev["rowid"]}) play duration from {dur} to {delta}')   # noqa: E501
+                    pdb.update_playduration(prev["rowid"], delta)
+                prev = i
+            offset += len(data)
+            data = pdb.get_activitys(offset, itemType='Audio',
+                                     clientName=clientName,
+                                     deviceName=deviceName)
diff --git a/jellyfinstats/db.py b/jellyfinstats/db.py
index e59953e..d243b3e 100644
--- a/jellyfinstats/db.py
+++ b/jellyfinstats/db.py
@@ -21,7 +21,8 @@ class PlaybackReportingDb:
 
     def get_activitys(self, offset: int = 0, limit: int = 100,
                       itemType: str = None, userId: str = None,
-                      startTime: float = None, endTime: float = None):
+                      startTime: float = None, endTime: float = None,
+                      clientName: str = None, deviceName: str = None):
         where_sqls = []
         where_sql = ''
         args = []
@@ -37,6 +38,12 @@ class PlaybackReportingDb:
         if endTime is not None:
             where_sqls.append('DateCreated <= ?')
             args.append(format_time(endTime))
+        if clientName is not None:
+            where_sqls.append("ClientName = ?")
+            args.append(clientName)
+        if deviceName is not None:
+            where_sqls.append("DeviceName = ?")
+            args.append(deviceName)
         if len(where_sqls):
             where_sql = ' WHERE ' + " AND ".join(where_sqls)
         args.append(limit)
@@ -45,6 +52,11 @@ class PlaybackReportingDb:
         cur.row_factory = sqlite3.Row
         return [dict(i) for i in cur.fetchall()]
 
+    def get_client_devices(self):
+        cur = self._db.execute("SELECT ClientName, DeviceName FROM PlaybackActivity GROUP BY ClientName, DeviceName;")  # noqa: E501
+        cur.row_factory = sqlite3.Row
+        return [dict(i) for i in cur.fetchall()]
+
     def get_users(self, itemType: str = None):
         where_sql = ''
         args = []
@@ -55,6 +67,9 @@ class PlaybackReportingDb:
         cur.row_factory = sqlite3.Row
         return [dict(i) for i in cur.fetchall()]
 
+    def update_playduration(self, rowid: int, duration: int):
+        self._db.execute("UPDATE PlaybackActivity SET PlayDuration = ? WHERE rowid = ?;", [duration, rowid])  # noqa: E501
+
 
 class LibraryDb:
     def __init__(self, fn: str):