diff --git a/core/modules/file/src/Plugin/Field/FieldType/FileItem.php b/core/modules/file/src/Plugin/Field/FieldType/FileItem.php
index 6af6741..a56448a 100644
--- a/core/modules/file/src/Plugin/Field/FieldType/FileItem.php
+++ b/core/modules/file/src/Plugin/Field/FieldType/FileItem.php
@@ -32,8 +32,8 @@ class FileItem extends EntityReferenceItem {
   public static function defaultSettings() {
     return array(
       'target_type' => 'file',
-      'display_field' => 0,
-      'display_default' => 0,
+      'display_field' => FALSE,
+      'display_default' => FALSE,
       'uri_scheme' => file_default_scheme(),
     ) + parent::defaultSettings();
   }
diff --git a/core/modules/image/config/schema/image.schema.yml b/core/modules/image/config/schema/image.schema.yml
index bb001ea..2d139a3 100644
--- a/core/modules/image/config/schema/image.schema.yml
+++ b/core/modules/image/config/schema/image.schema.yml
@@ -89,8 +89,8 @@ field.image.settings:
       type: boolean
       label: 'Display field'
     display_default:
-      type: string
-      label: 'Display default'
+      type: boolean
+      label: 'Displayed by default'
     target_bundle:
       type: string
       label: 'Target bundle'