diff --git a/tests/XMLSchema/XML/xs/ComplexContentTest.php b/tests/XMLSchema/XML/xs/ComplexContentTest.php
index 5e98a473..1de0d9a4 100644
--- a/tests/XMLSchema/XML/xs/ComplexContentTest.php
+++ b/tests/XMLSchema/XML/xs/ComplexContentTest.php
@@ -164,5 +164,7 @@ public function testMarshalling(): void
             self::$xmlRepresentation->saveXML(self::$xmlRepresentation->documentElement),
             strval($complexContent),
         );
+
+        $this->assertFalse($complexContent->isEmptyElement());
     }
 }