diff --git a/core/modules/field/lib/Drupal/field/Tests/FormTest.php b/core/modules/field/lib/Drupal/field/Tests/FormTest.php
index 930e363..8903006 100644
--- a/core/modules/field/lib/Drupal/field/Tests/FormTest.php
+++ b/core/modules/field/lib/Drupal/field/Tests/FormTest.php
@@ -617,7 +617,7 @@ function testFieldFormHiddenWidget() {
     $this->instance['field_name'] = $this->field_name;
     $this->instance['default_value'] = array(0 => array('value' => 99));
     entity_create('field_entity', $this->field)->save();
-    $this->instance= entity_create('field_instance', $this->instance);
+    $this->instance = entity_create('field_instance', $this->instance);
     $this->instance->save();
     entity_get_form_display($this->instance['entity_type'], $this->instance['bundle'], 'default')
       ->setComponent($this->instance['field_name'], array(