diff --git a/yui/build/moodle-availability_ipaddress-form/moodle-availability_ipaddress-form-debug.js b/yui/build/moodle-availability_ipaddress-form/moodle-availability_ipaddress-form-debug.js
index d5e6156..74de72a 100644
--- a/yui/build/moodle-availability_ipaddress-form/moodle-availability_ipaddress-form-debug.js
+++ b/yui/build/moodle-availability_ipaddress-form/moodle-availability_ipaddress-form-debug.js
@@ -126,6 +126,7 @@ M.availability_ipaddress.validateIpaddress = function(ipaddresses) {
     for (var i in ipaddresses) {
 
         // Test normal ip format.
+        // Strict ipv4 check.
         if (new RegExp(/^(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)){3}$/gm)
             .test(ipaddresses[i])) {
             Y.log('Correct ipv4');
diff --git a/yui/build/moodle-availability_ipaddress-form/moodle-availability_ipaddress-form.js b/yui/build/moodle-availability_ipaddress-form/moodle-availability_ipaddress-form.js
index a60197d..54e8a31 100644
--- a/yui/build/moodle-availability_ipaddress-form/moodle-availability_ipaddress-form.js
+++ b/yui/build/moodle-availability_ipaddress-form/moodle-availability_ipaddress-form.js
@@ -122,6 +122,7 @@ M.availability_ipaddress.validateIpaddress = function(ipaddresses) {
     for (var i in ipaddresses) {
 
         // Test normal ip format.
+        // Strict ipv4 check.
         if (new RegExp(/^(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)(?:\.(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)){3}$/gm)
             .test(ipaddresses[i])) {
             continue;