diff --git a/libavformat/nutenc.c b/libavformat/nutenc.c
index 06f53298d4c44f13f23b9b36cd807ba284bc5372..447cea31a04faa866d5cf0ec23798141b566a184 100644
--- a/libavformat/nutenc.c
+++ b/libavformat/nutenc.c
@@ -814,7 +814,7 @@ AVOutputFormat nut_muxer = {
 #elif defined(CONFIG_LIBMP3LAME)
     CODEC_ID_MP3,
 #else
-    CODEC_ID_MP2, /* AC3 needs liba52 decoder */
+    CODEC_ID_MP2,
 #endif
     CODEC_ID_MPEG4,
     write_header,