diff --git a/framework/yii/helpers/BaseHtml.php b/framework/yii/helpers/BaseHtml.php
index 6f8e4e5..1017665 100644
--- a/framework/yii/helpers/BaseHtml.php
+++ b/framework/yii/helpers/BaseHtml.php
@@ -797,7 +797,7 @@ class BaseHtml
* @param string $name the name attribute of each radio button.
* @param string|array $selection the selected value(s).
* @param array $items the data item used to generate the radio buttons.
- * The array keys are the labels, while the array values are the corresponding radio button values.
+ * The array values are the labels, while the array keys are the corresponding radio button values.
* @param array $options options (name => config) for the radio button list. The following options are supported:
*
* - unselect: string, the value that should be submitted when none of the radio buttons is selected.