diff --git a/Math.php b/Math.php
index 0cdb14f48..5ab002372 100644
--- a/Math.php
+++ b/Math.php
@@ -5,11 +5,11 @@ if ( function_exists( 'wfLoadExtension' ) ) {
 	$wgMessagesDirs['Math'] = __DIR__ . '/i18n';
 	$wgExtensionMessagesFiles['Math'] = __DIR__ . '/Math.alias.php';
 	$wgExtensionMessagesFiles['MathAliasNoTranslate'] = __DIR__ . '/Math.alias.noTranslate.php';
-	/* wfWarn(
+	wfWarn(
 		'Deprecated PHP entry point used for Math extension. Please use wfLoadExtension instead, ' .
 		'see https://www.mediawiki.org/wiki/Extension_registration for more details.'
-	);*/
+	);
 	return;
 } else {
-	die( 'This version of the Math extension requires MediaWiki 1.25+' );
+	die( 'This version of the Math extension requires MediaWiki 1.32+' );
 }