diff --git a/Tests/Caster/ReflectionCasterTest.php b/Tests/Caster/ReflectionCasterTest.php
index 96511116..d0285127 100644
--- a/Tests/Caster/ReflectionCasterTest.php
+++ b/Tests/Caster/ReflectionCasterTest.php
@@ -21,6 +21,7 @@
 use Symfony\Component\VarDumper\Tests\Fixtures\ReflectionIntersectionTypeFixture;
 use Symfony\Component\VarDumper\Tests\Fixtures\ReflectionNamedTypeFixture;
 use Symfony\Component\VarDumper\Tests\Fixtures\ReflectionUnionTypeFixture;
+use Symfony\Component\VarDumper\Tests\Fixtures\ReflectionUnionTypeWithIntersectionFixture;
 
 /**
  * @author Nicolas Grekas <p@tchwork.com>
@@ -94,7 +95,7 @@ public function testClosureCaster()
     $b: & 123
   }
   file: "%sReflectionCasterTest.php"
-  line: "87 to 87"
+  line: "88 to 88"
 }
 EOTXT
             , $var
@@ -318,6 +319,44 @@ public function testReflectionIntersectionType()
         );
     }
 
+    /**
+     * @requires PHP 8.2
+     */
+    public function testReflectionUnionTypeWithIntersection()
+    {
+        $var = (new \ReflectionProperty(ReflectionUnionTypeWithIntersectionFixture::class, 'a'))->getType();
+        $this->assertDumpMatchesFormat(
+            <<<'EOTXT'
+ReflectionUnionType {
+  allowsNull: true
+  types: array:2 [
+    0 => ReflectionIntersectionType {
+      allowsNull: false
+      types: array:2 [
+        0 => ReflectionNamedType {
+          name: "Traversable"
+          allowsNull: false
+          isBuiltin: false
+        }
+        1 => ReflectionNamedType {
+          name: "Countable"
+          allowsNull: false
+          isBuiltin: false
+        }
+      ]
+    }
+    1 => ReflectionNamedType {
+      name: "null"
+      allowsNull: true
+      isBuiltin: true
+    }
+  ]
+}
+EOTXT
+            , $var
+        );
+    }
+
     public function testExtendsReflectionType()
     {
         $var = new ExtendsReflectionTypeFixture();
diff --git a/Tests/Fixtures/ReflectionUnionTypeWithIntersectionFixture.php b/Tests/Fixtures/ReflectionUnionTypeWithIntersectionFixture.php
new file mode 100644
index 00000000..630d0e77
--- /dev/null
+++ b/Tests/Fixtures/ReflectionUnionTypeWithIntersectionFixture.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace Symfony\Component\VarDumper\Tests\Fixtures;
+
+class ReflectionUnionTypeWithIntersectionFixture
+{
+    public (\Traversable&\Countable)|null $a;
+}