diff --git a/lang/en/role.php b/lang/en/role.php
index d057f3b7a1a..3e931795368 100644
--- a/lang/en/role.php
+++ b/lang/en/role.php
@@ -164,8 +164,6 @@ $string['errorexistsrolename'] = 'Role name already exists';
 $string['errorexistsroleshortname'] = 'Role name already exists';
 $string['existingadmins'] = 'Current site administrators';
 $string['existingusers'] = '{$a} existing users';
-$string['explainpermission'] = 'Explain permission';
-$string['explainpermissionsinfo'] = '<p>To use this table:</p><ol><li>First look to see if there are any Prohibits. If there are, has_capability will return false.</li><li>Otherwise, read across the rows, left-to-right, top-to-bottom, and find the first cell where the number of Prevents and Allows are different. If there are more Allows than Prevents in that cell, then has_capability will return true, otherwise it will return false.</li><li>If no cell has different numbers of Prevents and Allows, then has_capability will return false.</li></ol>';
 $string['explanation'] = 'Explanation';
 $string['extusers'] = 'Existing users';
 $string['extusersmatching'] = 'Existing users matching \'{$a}\'';