core/modules/user/user.admin.inc |    2 +-
 core/modules/user/user.module    |    2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/core/modules/user/user.admin.inc b/core/modules/user/user.admin.inc
index de074ef..9946ae2 100644
--- a/core/modules/user/user.admin.inc
+++ b/core/modules/user/user.admin.inc
@@ -384,7 +384,7 @@ function user_admin_permissions_submit($form, &$form_state) {
   drupal_set_message(t('The changes have been saved.'));
 
   // Clear the cached pages and blocks.
-  cache_invalidate_tags(array('content' => TRUE, 'permissions' => TRUE));
+  cache_invalidate_tags(array('content' => TRUE));
 }
 
 /**
diff --git a/core/modules/user/user.module b/core/modules/user/user.module
index 748945e..66ffe9e 100644
--- a/core/modules/user/user.module
+++ b/core/modules/user/user.module
@@ -1988,6 +1988,7 @@ function user_role_grant_permissions($rid, array $permissions = array()) {
   // Clear the user access cache.
   drupal_static_reset('user_access');
   drupal_static_reset('user_role_permissions');
+  cache_invalidate_tags(array('permissions' => $rid));
 }
 
 /**
@@ -2011,6 +2012,7 @@ function user_role_revoke_permissions($rid, array $permissions = array()) {
   // Clear the user access cache.
   drupal_static_reset('user_access');
   drupal_static_reset('user_role_permissions');
+  cache_invalidate_tags(array('permissions' => $rid));
 }
 
 /**