diff --git a/core/modules/system/tests/modules/entity_test/entity_test.install b/core/modules/system/tests/modules/entity_test/entity_test.install
index dacd1f5..d0da050 100644
--- a/core/modules/system/tests/modules/entity_test/entity_test.install
+++ b/core/modules/system/tests/modules/entity_test/entity_test.install
@@ -229,8 +229,7 @@ function entity_test_schema() {
         'description' => 'The name of the test entity.',
         'type' => 'varchar',
         'length' => 32,
-        'not null' => TRUE,
-        'default' => '',
+        'not null' => FALSE,
       ),
       'user_id' => array(
         'type' => 'int',