diff --git a/tests/php81-compatibility.patch b/tests/php81-compatibility.patch
index 771076f7..5ec3c91e 100644
--- a/tests/php81-compatibility.patch
+++ b/tests/php81-compatibility.patch
@@ -70,6 +70,18 @@ index caf1dbb..fc734db 100644
      {
          foreach ($items as $item) {
              if (! $item->isItem()) {
+diff --git a/tests/fixed/ExampleBackedEnum.php b/tests/fixed/ExampleBackedEnum.php
+index fe54eb9..cc38c54 100644
+--- a/tests/fixed/ExampleBackedEnum.php
++++ b/tests/fixed/ExampleBackedEnum.php
+@@ -3,3 +3,7 @@
+ declare(strict_types=1);
+ 
+ namespace ExampleBackedEnum;
++
++enum ExampleBackedEnum: int
++{
++}
 diff --git a/tests/fixed/NamingCamelCase.php b/tests/fixed/NamingCamelCase.php
 index 57d9f2b..5493471 100644
 --- a/tests/fixed/NamingCamelCase.php
@@ -395,6 +407,18 @@ index 10e6f34..5e26ed8 100644
 -    private $x = 1;
 +    private int|string|null $x = 1;
  }
+diff --git a/tests/input/ExampleBackedEnum.php b/tests/input/ExampleBackedEnum.php
+index fe54eb9..0c47286 100644
+--- a/tests/input/ExampleBackedEnum.php
++++ b/tests/input/ExampleBackedEnum.php
+@@ -3,3 +3,7 @@
+ declare(strict_types=1);
+ 
+ namespace ExampleBackedEnum;
++
++enum ExampleBackedEnum :   int
++{
++}
 diff --git a/tests/input/PropertyDeclaration.php b/tests/input/PropertyDeclaration.php
 index 0891e12..acdc445 100644
 --- a/tests/input/PropertyDeclaration.php