diff --git a/tests/TestCase/ORM/TableRegistryTest.php b/tests/TestCase/ORM/TableRegistryTest.php
index 2ad367dff5b..ea4d6a762a3 100644
--- a/tests/TestCase/ORM/TableRegistryTest.php
+++ b/tests/TestCase/ORM/TableRegistryTest.php
@@ -222,6 +222,20 @@ public function testGetWithConfig()
         $this->assertEquals('my_articles', $result->table(), 'Should use config() data.');
     }
 
+    /**
+     * Test that get() uses config data `className` set with config()
+     *
+     * @return void
+     */
+    public function testGetWithConfigClassName()
+    {
+        TableRegistry::config('MyUsersTableAlias', [
+            'className' => '\Cake\Test\TestCase\ORM\MyUsersTable',
+        ]);
+        $result = TableRegistry::get('MyUsersTableAlias');
+        $this->assertInstanceOf('\Cake\Test\TestCase\ORM\MyUsersTable', $result, 'Should use config() data className option.');
+    }
+
     /**
      * Test get with config throws an exception if the alias exists already.
      *