diff --git a/ImageMap.php b/ImageMap.php
index 71b9d9b..fb190d9 100644
--- a/ImageMap.php
+++ b/ImageMap.php
@@ -4,10 +4,10 @@ if ( function_exists( 'wfLoadExtension' ) ) {
 	wfLoadExtension( 'ImageMap' );
 	// Keep i18n globals so mergeMessageFileList.php doesn't break
 	$wgMessagesDirs['ImageMap'] = __DIR__ . '/i18n';
-	/* wfWarn(
+	wfWarn(
 		'Deprecated PHP entry point used for ImageMap extension. Please use wfLoadExtension instead, ' .
 		'see https://www.mediawiki.org/wiki/Extension_registration for more details.'
-	); */
+	);
 	return true;
 } else {
 	die( 'This version of the ImageMap extension requires MediaWiki 1.25+' );