diff --git a/ffserver.c b/ffserver.c
index b5bd8f833b97fa3526310ff2a31462e18e2cc054..1a2758367736bb39d31a187fbbfbded91d88f0a5 100644
--- a/ffserver.c
+++ b/ffserver.c
@@ -3863,6 +3863,8 @@ drop:
             if (avformat_write_header(s, NULL) < 0) {
                 http_log("Container doesn't support the required parameters\n");
                 avio_closep(&s->pb);
+                s->streams = NULL;
+                s->nb_streams = 0;
                 avformat_free_context(s);
                 goto bail;
             }