diff --git a/framework/requirements/requirements.php b/framework/requirements/requirements.php
index d515af77fe..d38d7fe885 100644
--- a/framework/requirements/requirements.php
+++ b/framework/requirements/requirements.php
@@ -106,7 +106,7 @@ return array(
     array(
         'name' => 'IPv6 support',
         'mandatory' => false,
-        'condition' => defined('AF_INET6'),
+        'condition' => strlen(@inet_pton('2001:db8::1')) === 16,
         'by' => 'IPv6 expansion in <a href="http://www.yiiframework.com/doc-2.0/yii-validators-ipvalidator.html">IpValidator</a>',
         'memo' => 'When <a href="http://www.yiiframework.com/doc-2.0/yii-validators-ipvalidator.html#$expandIPv6-detail">IpValidator::expandIPv6</a>
         property is set to <code>true</code>, PHP must support IPv6 protocol stack. Currently PHP constant <code>AF_INET6</code> is not defined