diff --git a/libavformat/rmdec.c b/libavformat/rmdec.c
index 487e74f0d9e4d5540bc76c5e2d9b1b317e6af866..eb0f3c5ff0f091c155605f977ebc63228137b3d1 100644
--- a/libavformat/rmdec.c
+++ b/libavformat/rmdec.c
@@ -240,8 +240,6 @@ static int rm_read_audio_stream_info(AVFormatContext *s, AVIOContext *pb,
                     return ret;
             }
             break;
-        default:
-            av_strlcpy(st->codec->codec_name, buf, sizeof(st->codec->codec_name));
         }
         if (ast->deint_id == DEINT_ID_INT4 ||
             ast->deint_id == DEINT_ID_GENR ||