diff --git a/libavformat/tests/fifo_muxer.c b/libavformat/tests/fifo_muxer.c
index 9659198ff1..413700ef70 100644
--- a/libavformat/tests/fifo_muxer.c
+++ b/libavformat/tests/fifo_muxer.c
@@ -150,6 +150,9 @@ static int prepare_packet(AVPacket *pkt,const FailingMuxerPacketData *pkt_data,
 {
     int ret;
     FailingMuxerPacketData *data = av_malloc(sizeof(*data));
+    if (!data) {
+        return AVERROR(ENOMEM);
+    }
     memcpy(data, pkt_data, sizeof(FailingMuxerPacketData));
     ret = av_packet_from_data(pkt, (uint8_t*) data, sizeof(*data));