X-Git-Url: https://git.exim.org/exim.git/blobdiff_plain/b5fd6a2b95ee5fb8106409eeada846b638bd083b..ccee17956fb0d611dd5f45adb6ba31afc4eafd01:/doc/doc-docbook/spec.xfpt

diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index f8e73839a..0641ad124 100644
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -10663,7 +10663,7 @@ number of lines in the message's body. See also &$message_linecount$&.
 .cindex "binary zero" "in message body"
 .vindex "&$body_zerocount$&"
 When a message is being received or delivered, this variable contains the
-number of binary zero bytes in the message's body.
+number of binary zero bytes (ASCII NULs) in the message's body.
 
 .vitem &$bounce_recipient$&
 .vindex "&$bounce_recipient$&"