diff --git a/PageImages.php b/PageImages.php
index 00f77f6..163a8bd 100644
--- a/PageImages.php
+++ b/PageImages.php
@@ -3,10 +3,10 @@ if ( function_exists( 'wfLoadExtension' ) ) {
 	wfLoadExtension( 'PageImages' );
 	// Keep i18n globals so mergeMessageFileList.php doesn't break
 	$wgMessagesDirs['PageImages'] = __DIR__ . '/i18n';
-	/*wfWarn(
+	wfWarn(
 		'Deprecated PHP entry point used for PageImages extension. Please use wfLoadExtension instead, ' .
 		'see https://www.mediawiki.org/wiki/Extension_registration for more details.'
-	);*/
+	);
 	return;
 } else {
 	die( 'This version of the PageImages extension requires MediaWiki 1.29+' );