diff --git a/src/QtAVPlayer/qavsubtitleframe.cpp b/src/QtAVPlayer/qavsubtitleframe.cpp
index f95d9da..496da24 100644
--- a/src/QtAVPlayer/qavsubtitleframe.cpp
+++ b/src/QtAVPlayer/qavsubtitleframe.cpp
@@ -28,6 +28,7 @@ class QAVSubtitleFramePrivate : public QAVStreamFramePrivate
 static void subtitle_free(AVSubtitle *subtitle)
 {
     avsubtitle_free(subtitle);
+    delete subtitle;
 }
 
 QAVSubtitleFrame::QAVSubtitleFrame()