3 files changed, 7 insertions, 0 deletions
diff --git a/usage.c b/usage.c
index e547068..5831514 100644
--- a/usage.c
+++ b/usage.c
@@ -1,6 +1,7 @@
 char *usage_opts[] = {
 	"  --: no more options.",
 	"  -1: don't alternate colors.",
+	"  -a: don't dump ASCII-only lines.",
 	"  -b: bold color output.",
 	"  -c nnnnn: colors (1 to 5 digits, 0 to 7).",
 	"  -d data: dump this data instead of a file.",
diff --git a/uxd.1 b/uxd.1
index 178ed24..0ec55ea 100644
--- a/uxd.1
+++ b/uxd.1
@@ -89,6 +89,10 @@ Don\(aqt alternate colors.
 .B  \-a
 Don\(aqt dump lines that consist entirely of ASCII characters (codepoints
 U+00 to U+7f).
+.UNINDENT
+.\" don't dump ASCII-only lines.
+.
+.INDENT 0.0
 .TP
 .B  \-b
 Bold output. This may be more or less readable, depending on your
diff --git a/uxd.rst b/uxd.rst
index ed52a84..a8775e6 100644
--- a/uxd.rst
+++ b/uxd.rst
@@ -75,6 +75,8 @@ Also, a decimal point can be used: **1.5K** is 1500 bytes, **1.5k** is
    Don't dump lines that consist entirely of ASCII characters (codepoints
    U+00 to U+7f).
 
+.. don't dump ASCII-only lines.
+
 -b
   Bold output. This may be more or less readable, depending on your
   terminal and its color settings. Ignored if **-m** given.