diff --git a/core/modules/field_ui/field_ui.test b/core/modules/field_ui/field_ui.test
index ac9471f..6d1c75e 100644
--- a/core/modules/field_ui/field_ui.test
+++ b/core/modules/field_ui/field_ui.test
@@ -368,7 +368,7 @@ class FieldUIManageFieldsTestCase extends FieldUITestCase {
     $bundle_path1 = 'admin/structure/types/manage/' . $this->hyphen_type;
     $edit1 = array(
       'fields[_add_new_field][label]' => $this->field_label,
-      'fields[_add_new_field][field_name]' => $this->field_name,
+      'fields[_add_new_field][field_name]' => $this->field_name_input,
     );
     $this->fieldUIAddNewField($bundle_path1, $edit1);
 
@@ -503,7 +503,7 @@ class FieldUIManageDisplayTestCase extends FieldUITestCase {
     // Create a field, and a node with some data for the field.
     $edit = array(
       'fields[_add_new_field][label]' => 'Test field',
-      'fields[_add_new_field][field_name]' => 'field_test',
+      'fields[_add_new_field][field_name]' => 'test',
     );
     $this->fieldUIAddNewField($manage_fields, $edit);
 
@@ -548,7 +548,7 @@ class FieldUIManageDisplayTestCase extends FieldUITestCase {
     // Create a field, and a node with some data for the field.
     $edit = array(
       'fields[_add_new_field][label]' => 'Test field',
-      'fields[_add_new_field][field_name]' => 'field_test',
+      'fields[_add_new_field][field_name]' => 'test',
     );
     $this->fieldUIAddNewField('admin/structure/types/manage/' . $this->hyphen_type, $edit);
     // For this test, use a formatter setting value that is an integer unlikely