diff --git a/QtScrcpy/decoder/decoder.h b/QtScrcpy/decoder/decoder.h
index e5d704f..3d600ba 100644
--- a/QtScrcpy/decoder/decoder.h
+++ b/QtScrcpy/decoder/decoder.h
@@ -54,7 +54,6 @@ protected:
 
 private:
     QPointer<DeviceSocket> m_deviceSocket;
-    QMutex m_mutex;
     bool m_quit = false;
     Frames* m_frames;