diff --git a/tests/AutoReview/SourceCodeTest.php b/tests/AutoReview/SourceCodeTest.php
index 50415b5..a9f2f77 100644
--- a/tests/AutoReview/SourceCodeTest.php
+++ b/tests/AutoReview/SourceCodeTest.php
@@ -204,6 +204,7 @@ public function testSourceClassDoesNotHaveUnnecessaryProtectedMethods(string $cl
                 ...$allowedProtectedMethods,
                 ...$parent->getMethods(\ReflectionMethod::IS_PROTECTED),
             ];
+            $parent = $parent->getParentClass();
         }
 
         $allowedProtectedMethods = array_unique(array_map(