diff --git a/core/modules/rest/tests/src/Functional/EntityResource/EntityTest/EntityTestResourceTestBase.php b/core/modules/rest/tests/src/Functional/EntityResource/EntityTest/EntityTestResourceTestBase.php
index d14ec38189..1a73c99e94 100644
--- a/core/modules/rest/tests/src/Functional/EntityResource/EntityTest/EntityTestResourceTestBase.php
+++ b/core/modules/rest/tests/src/Functional/EntityResource/EntityTest/EntityTestResourceTestBase.php
@@ -14,7 +14,7 @@
   /**
    * {@inheritdoc}
    */
-  public static $modules = ['entity_test'];
+  public static $modules = ['entity_test', 'book'];
 
   /**
    * {@inheritdoc}