diff --git a/web/lib/supplangs.php b/web/lib/supplangs.php
index 742eafd..0401289 100644
--- a/web/lib/supplangs.php
+++ b/web/lib/supplangs.php
@@ -1,6 +1,6 @@
 <?php
 
-// when adding a language code here, it is necessary to add it to the "localemap" function in localemap.php, and to add it to "langs" variable in "../../clitools/updtrans.bash" (if missing), and to run "../../clitools/addlang.php <new language code>" locally and on the server --- it is *no longer necessary* to modify "$menu" variable in "../index.php", "$hlmap" variable in "../stats.php", "$hitslang" and "$langs" variables in "../../clitools/mustool.php" and "getlangid" function in "../../clitools/getinstinfo.php"
+// when adding a language code here, it is necessary to add its locale to the system, to the "localemap" function in localemap.php, and to "langs" variable in "../../clitools/updtrans.bash" (if missing), and to run "../../clitools/addlang.php <new language code>" locally and on the server --- it is *no longer necessary* to modify "$menu" variable in "../index.php", "$hlmap" variable in "../stats.php", "$hitslang" and "$langs" variables in "../../clitools/mustool.php" and "getlangid" function in "../../clitools/getinstinfo.php"
 
 $supplangs=[
 /*	'ca'=>['orname'=>'Català','trname'=>_('Catalan')],