diff --git a/ffmpeg.c b/ffmpeg.c
index af93880ed8..65f252bdf3 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -459,6 +459,7 @@ static void exit_program(void)
         avcodec_free_frame(&input_streams[i]->decoded_frame);
         av_dict_free(&input_streams[i]->opts);
         free_buffer_pool(&input_streams[i]->buffer_pool);
+        avsubtitle_free(&input_streams[i]->prev_sub.subtitle);
         avfilter_unref_bufferp(&input_streams[i]->sub2video.ref);
         av_freep(&input_streams[i]->filters);
         av_freep(&input_streams[i]);