diff --git a/core/modules/text/lib/Drupal/text/Plugin/field/field_type/TextItem.php b/core/modules/text/lib/Drupal/text/Plugin/field/field_type/TextItem.php
index 61e8518..1949a03 100644
--- a/core/modules/text/lib/Drupal/text/Plugin/field/field_type/TextItem.php
+++ b/core/modules/text/lib/Drupal/text/Plugin/field/field_type/TextItem.php
@@ -19,7 +19,8 @@
  *   label = @Translation("Text"),
  *   description = @Translation("This field stores varchar/varbinary text in the database."),
  *   settings = {
- *     "max_length" = "255"
+ *     "max_length" = "255",
+ *     "case_sensitive" = "0"
  *   },
  *   instance_settings = {
  *     "text_processing" = "0"
diff --git a/core/modules/text/lib/Drupal/text/Plugin/field/field_type/TextItemBase.php b/core/modules/text/lib/Drupal/text/Plugin/field/field_type/TextItemBase.php
index 19c715d..9c5e45c 100644
--- a/core/modules/text/lib/Drupal/text/Plugin/field/field_type/TextItemBase.php
+++ b/core/modules/text/lib/Drupal/text/Plugin/field/field_type/TextItemBase.php
@@ -45,11 +45,6 @@ public function getPropertyDefinitions() {
           'text source' => 'value',
         ),
       );
-      static::$propertyDefinitions['case_sensitive'] = array(
-        'type' => 'string',
-        'label' => t('Case sensitive'),
-        'description' => t('Comparisons and sorts consider case.'),
-      );
     }
     return static::$propertyDefinitions;
   }
diff --git a/core/modules/text/lib/Drupal/text/Plugin/field/field_type/TextLongItem.php b/core/modules/text/lib/Drupal/text/Plugin/field/field_type/TextLongItem.php
index e7a6bac..be8d5cb 100644
--- a/core/modules/text/lib/Drupal/text/Plugin/field/field_type/TextLongItem.php
+++ b/core/modules/text/lib/Drupal/text/Plugin/field/field_type/TextLongItem.php
@@ -18,6 +18,9 @@
  *   id = "text_long",
  *   label = @Translation("Long text"),
  *   description = @Translation("This field stores long text in the database."),
+ *   settings = {
+ *     "case_sensitive" = "0"
+ *   },
  *   instance_settings = {
  *     "text_processing" = "0"
  *   },
diff --git a/core/modules/text/lib/Drupal/text/Plugin/field/field_type/TextWithSummaryItem.php b/core/modules/text/lib/Drupal/text/Plugin/field/field_type/TextWithSummaryItem.php
index 1675e9e..8b87409 100644
--- a/core/modules/text/lib/Drupal/text/Plugin/field/field_type/TextWithSummaryItem.php
+++ b/core/modules/text/lib/Drupal/text/Plugin/field/field_type/TextWithSummaryItem.php
@@ -18,6 +18,9 @@
  *   id = "text_with_summary",
  *   label = @Translation("Long text and summary"),
  *   description = @Translation("This field stores long text in the database along with optional summary text."),
+ *   settings = {
+ *     "case_sensitive" = "0"
+ *   },
  *   instance_settings = {
  *     "text_processing" = "1",
  *     "display_summary" = "0"