diff --git a/ffmpeg.c b/ffmpeg.c
index cbcdba8c64..04672cc831 100644
--- a/ffmpeg.c
+++ b/ffmpeg.c
@@ -684,6 +684,7 @@ static int read_ffserver_streams(AVFormatContext *s, const char *filename)
         // FIXME: a more elegant solution is needed
         st = av_mallocz(sizeof(AVStream));
         memcpy(st, ic->streams[i], sizeof(AVStream));
+        st->info = NULL;
         st->codec = avcodec_alloc_context();
         if (!st->codec) {
             print_error(filename, AVERROR(ENOMEM));