diff -u b/core/modules/views/src/Plugin/views/filter/FilterPluginBase.php b/core/modules/views/src/Plugin/views/filter/FilterPluginBase.php
--- b/core/modules/views/src/Plugin/views/filter/FilterPluginBase.php
+++ b/core/modules/views/src/Plugin/views/filter/FilterPluginBase.php
@@ -172,7 +172,7 @@
    * Display the filter on the administrative summary
    */
   public function adminSummary() {
-    return SafeMarkup::checkPlain((string) $this->operator) . ' ' . UtilitySafeMarkup::checkPlain((string) $this->value);
+    return SafeMarkup::checkPlain((string) $this->operator) . ' ' . SafeMarkup::checkPlain((string) $this->value);
   }
 
   /**