diff --git a/core/modules/filter/filter.module b/core/modules/filter/filter.module
index 513b5d3..145691a 100644
--- a/core/modules/filter/filter.module
+++ b/core/modules/filter/filter.module
@@ -786,7 +786,6 @@ function template_preprocess_text_format_wrapper(&$variables) {
  */
 function template_preprocess_filter_tips(&$variables) {
   $tips = $variables['tips'];
-  $long = $variables['long'];
 
   foreach ($variables['tips'] as $name => $tiplist) {
     foreach ($tiplist as $tip_key => $tip) {