diff --git a/modules/block.module b/modules/block.module
index 1c81dd672a99371ca6c502008e2167d21f3865a5..7d8824d55a6b9957d9c0c47db3381d7e0dc27fd3 100644
--- a/modules/block.module
+++ b/modules/block.module
@@ -346,7 +346,8 @@ function block_admin_configure($module = NULL, $delta = 0) {
   $form['user_vis_settings']['custom'] = array(
     '#type' => 'radios',
     '#title' => t('Custom visibility settings'),
-    '#options' => array(t('Users cannot control whether or not they see this block.'), t('Show this block by default, but let individual users hide it.'), t('Hide this block by default but let individual users show it.'), t('Allow individual users to customize the visibility of this block in their account settings.')),
+    '#options' => array(t('Users cannot control whether or not they see this block.'), t('Show this block by default, but let individual users hide it.'), t('Hide this block by default but let individual users show it.')),
+    '#description' =>  t('Allow individual users to customize the visibility of this block in their account settings.'),
     '#default_value' => $edit['custom'],
   );
   $form['page_vis_settings'] = array(
diff --git a/modules/block/block.module b/modules/block/block.module
index 1c81dd672a99371ca6c502008e2167d21f3865a5..7d8824d55a6b9957d9c0c47db3381d7e0dc27fd3 100644
--- a/modules/block/block.module
+++ b/modules/block/block.module
@@ -346,7 +346,8 @@ function block_admin_configure($module = NULL, $delta = 0) {
   $form['user_vis_settings']['custom'] = array(
     '#type' => 'radios',
     '#title' => t('Custom visibility settings'),
-    '#options' => array(t('Users cannot control whether or not they see this block.'), t('Show this block by default, but let individual users hide it.'), t('Hide this block by default but let individual users show it.'), t('Allow individual users to customize the visibility of this block in their account settings.')),
+    '#options' => array(t('Users cannot control whether or not they see this block.'), t('Show this block by default, but let individual users hide it.'), t('Hide this block by default but let individual users show it.')),
+    '#description' =>  t('Allow individual users to customize the visibility of this block in their account settings.'),
     '#default_value' => $edit['custom'],
   );
   $form['page_vis_settings'] = array(