diff --git a/tests/unit/MassMockCest.php b/tests/unit/MassMockCest.php
index 2bfddeb5794..c98c66710dc 100644
--- a/tests/unit/MassMockCest.php
+++ b/tests/unit/MassMockCest.php
@@ -44,7 +44,7 @@ public function testSegFaults(): void
             $mockBuilder = $this->getMockBuilder($class)->disableOriginalConstructor();
             $this->assertInstanceOf(MockObject::class, $mockBuilder->getMock());
 
-            unset($mockBuilder);
+            unset($reflector, $mockBuilder);
         }
     }
 }