diff --git a/tests/system/Database/Live/GetTest.php b/tests/system/Database/Live/GetTest.php
index 59381e07a6c2..29dbdad10c0d 100644
--- a/tests/system/Database/Live/GetTest.php
+++ b/tests/system/Database/Live/GetTest.php
@@ -229,7 +229,15 @@ public function testGetRowWithReturnType()
 
     public function testGetRowWithCustomReturnType()
     {
-        $testClass = new class () {};
+        $testClass = new class () {
+            public $id;
+            public $name;
+            public $email;
+            public $country;
+            public $created_at;
+            public $updated_at;
+            public $deleted_at;
+        };
 
         $user = $this->db->table('user')->get()->getRow(0, get_class($testClass));