diff --git a/libavformat/yop.c b/libavformat/yop.c
index 1185a3efc7..2d89c6e3f2 100644
--- a/libavformat/yop.c
+++ b/libavformat/yop.c
@@ -64,6 +64,8 @@ static int yop_read_header(AVFormatContext *s)
 
     audio_stream = avformat_new_stream(s, NULL);
     video_stream = avformat_new_stream(s, NULL);
+    if (!audio_stream || !video_stream)
+        return AVERROR(ENOMEM);
 
     // Extra data that will be passed to the decoder
     video_stream->codec->extradata_size = 8;