diff --git a/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigEntityReferenceItemBase.php b/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigEntityReferenceItemBase.php
index ff4472f..603d900 100644
--- a/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigEntityReferenceItemBase.php
+++ b/core/modules/field/lib/Drupal/field/Plugin/Type/FieldType/ConfigEntityReferenceItemBase.php
@@ -95,7 +95,7 @@ public function getPropertyDefinitions() {
    */
   public static function schema(Field $field) {
     $definition = \Drupal::service('plugin.manager.entity.field.field_type')->getDefinition($field->type);
-    $module = $definition['module'];
+    $module = $definition['provider'];
     module_load_install($module);
     $callback = "{$module}_field_schema";
     if (function_exists($callback)) {