diff --git a/framework/yii/i18n/I18N.php b/framework/yii/i18n/I18N.php
index 82ba86e..ef775a4 100644
--- a/framework/yii/i18n/I18N.php
+++ b/framework/yii/i18n/I18N.php
@@ -64,7 +64,7 @@ class I18N extends Component
 	 * Translates a message to the specified language.
 	 *
 	 * After translation the message will be formatted using [[MessageFormatter]] if it contains
-	 * ITU message format and `$params` are not empty.
+	 * ICU message format and `$params` are not empty.
 	 *
 	 * @param string $category the message category.
 	 * @param string $message the message to be translated.