diff --git a/dependency-test.sh b/dependency-test.sh
index 770873c5..3c5301bd 100755
--- a/dependency-test.sh
+++ b/dependency-test.sh
@@ -15,6 +15,7 @@ ro=0
 (hash mkdir        2>/dev/null) || (br=1 ; echo 'Missing mkdir, install coreutils [build required]')
 (hash cp           2>/dev/null) || (br=1 ; echo 'Missing cp, install coreutils [build required]')
 (hash cut          2>/dev/null) || (br=1 ; echo 'Missing cut, install coreutils [build required]')
+(hash chmod        2>/dev/null) || (br=1 ; echo 'Missing chmod, install coreutils [build required]')
 
 (hash bash         2>/dev/null) || (bs=1 ; echo 'Missing bash, install bash [build recommended]')
 
@@ -32,6 +33,7 @@ ro=0
 
 (hash tty2colourfultty   2>/dev/null) || (ro=1 ; echo 'Missing tty2colourfultty, install util-say [runtime optional]')
 (hash ponysay2ttyponysay 2>/dev/null) || (ro=1 ; echo 'Missing ponysay2ttyponysay, install util-say [runtime optional]')
+(hash chmod              2>/dev/null) || (rr=1 ; echo 'Missing chmod, install coreutils [runtime optional]')
 
 ( (test $br = 1) || (test $rr = 1) || (test $ro = 1) ) && echo
 
diff --git a/manuals/ponysay.texinfo b/manuals/ponysay.texinfo
index a43a781c..d2c5165c 100644
--- a/manuals/ponysay.texinfo
+++ b/manuals/ponysay.texinfo
@@ -754,12 +754,14 @@ We have provided a script that should run one most, if not all shells, named
 
 @table @command
 @item util-say>=2
-@cindex @command{util-say}
+@pindex @command{util-say}
 @cindex kms
 @cindex tty
 @pindex linux vt
 For improved TTY support for user with custom colour palette and KMS support.
-It can be downloaded at @url{https://github.com/maandree/util-say}.
+It can be downloaded at @url{https://github.com/maandree/util-say}. If this is
+used @command{chmod} from @command{coreutils} is also required.
+
 
 @cindex .png
 @cindex png images