diff --git a/libavcodec/mdec.c b/libavcodec/mdec.c
index 356e0316b3..1105acf190 100644
--- a/libavcodec/mdec.c
+++ b/libavcodec/mdec.c
@@ -267,5 +267,6 @@ AVCodec mdec_decoder = {
     decode_end,
     decode_frame,
     CODEC_CAP_DR1,
+    .long_name="Sony PlayStation MDEC (Motion DECoder)",
 };