diff --git a/libavcodec/options.c b/libavcodec/options.c
index f19928cd86..821bf800b3 100644
--- a/libavcodec/options.c
+++ b/libavcodec/options.c
@@ -126,8 +126,8 @@ static const AVOption options[]={
 {"extradata_size", NULL, OFFSET(extradata_size), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
 {"time_base", NULL, OFFSET(time_base), FF_OPT_TYPE_RATIONAL, {.dbl = 0}, INT_MIN, INT_MAX},
 {"g", "set the group of picture size", OFFSET(gop_size), FF_OPT_TYPE_INT, {.dbl = 12 }, INT_MIN, INT_MAX, V|E},
-{"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
-{"ac", "set number of audio channels", OFFSET(channels), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},
+{"ar", "set audio sampling rate (in Hz)", OFFSET(sample_rate), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|D|E},
+{"ac", "set number of audio channels", OFFSET(channels), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|D|E},
 {"cutoff", "set cutoff bandwidth", OFFSET(cutoff), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|E},
 {"frame_size", NULL, OFFSET(frame_size), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX, A|E},
 {"frame_number", NULL, OFFSET(frame_number), FF_OPT_TYPE_INT, {.dbl = DEFAULT }, INT_MIN, INT_MAX},