core/modules/editor/editor.module |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/modules/editor/editor.module b/core/modules/editor/editor.module
index 75dfd2e..c1bffd4 100644
--- a/core/modules/editor/editor.module
+++ b/core/modules/editor/editor.module
@@ -383,7 +383,7 @@ function editor_pre_render_format($element) {
   // Hide the text format's filters' guidelines of those text formats that have
   // a text editor associated: they're rather useless when using a text editor.
   foreach ($editors as $format_id => $editor) {
-    unset($element['format']['guidelines'][$format_id]);
+    $element['format']['guidelines'][$format_id]['#access'] = FALSE;
   }
 
   // Attach Text Editor module's (this module) library.