diff --git a/core/modules/views/src/Plugin/views/filter/BooleanOperator.php b/core/modules/views/src/Plugin/views/filter/BooleanOperator.php
index af477d3..a4cded4 100644
--- a/core/modules/views/src/Plugin/views/filter/BooleanOperator.php
+++ b/core/modules/views/src/Plugin/views/filter/BooleanOperator.php
@@ -202,7 +202,7 @@ public function adminSummary() {
     // human-readable label based on the current value.  The valueOptions
     // array is keyed with either 0 or 1, so if the current value is not
     // empty, use the label for 1, and if it's empty, use the label for 0.
-    return $this->valueOptions[!empty($this->value)];
+    return $this->operator . ' ' . $this->valueOptions[!empty($this->value)];
   }
 
   public function defaultExposeOptions() {
@@ -234,7 +234,7 @@ public function query() {
    *   (optional) Either static::EQUAL or static::NOT_EQUAL. Defaults to
    *   static::EQUAL.
    */
-  protected function queryOpBoolean($field, $query_operator = '=') {
+  protected function queryOpBoolean($field, $query_operator = EQUAL) {
     if (empty($this->value)) {
       if ($this->accept_null) {
         if ($query_operator == static::EQUAL) {
@@ -255,11 +255,16 @@ protected function queryOpBoolean($field, $query_operator = '=') {
     }
     else {
       if (!empty($this->definition['use_equal'])) {
-        $this->query->addWhere($this->options['group'], $field, 1, $query_operator);
+        // Forces an '=' operator instead of a '<>' for performance reasons.
+        if ($query_operator == static::EQUAL) {
+          $this->query->addWhere($this->options['group'], $field, 1, static::EQUAL);
+        }
+        else {
+          $this->query->addWhere($this->options['group'], $field, 0, static::EQUAL);
+        }
       }
       else {
-        $reverse_operator = $query_operator == static::EQUAL ? static::NOT_EQUAL : static::EQUAL;
-        $this->query->addWhere($this->options['group'], $field, 0, $reverse_operator);
+        $this->query->addWhere($this->options['group'], $field, 1, $query_operator);
       }
     }
   }