diff --git a/libavcodec/libtwolame.c b/libavcodec/libtwolame.c
index 88a708a4a3..542abbc32a 100644
--- a/libavcodec/libtwolame.c
+++ b/libavcodec/libtwolame.c
@@ -191,7 +191,6 @@ static const AVClass twolame_class = {
 
 static const AVCodecDefault twolame_defaults[] = {
     { "b", "384000" },
-    { "ar", "48000" },
     { NULL },
 };