diff --git a/src/CodeVisitor.php b/src/CodeVisitor.php
index da87f6e4..c9662660 100644
--- a/src/CodeVisitor.php
+++ b/src/CodeVisitor.php
@@ -73,7 +73,7 @@ private function validateClass(Class_ $class): void
      */
     private function enterNodeClass(Node $node)
     {
-        if ($node instanceof Class_) {
+        if ($node instanceof Class_ && $node->name !== null) {
             $this->validateClass($node);
             $this->class = $node;
 
diff --git a/tests/CompilerTest.php b/tests/CompilerTest.php
index 151505f9..2dbb2f8f 100644
--- a/tests/CompilerTest.php
+++ b/tests/CompilerTest.php
@@ -353,4 +353,11 @@ public function testCompileMultipleFile(): void
         $bind = (new Bind())->bindInterceptors('foo', [new FakeDoubleInterceptor()]);
         $compiler->newInstance(FakeTwoClass::class, [], $bind);
     }
+
+    public function testNewInstanceWithAnonymousClass(): void
+    {
+        $mock = $this->compiler->newInstance(FakeAnonymousClass::class, [], $this->bind);
+        $this->assertInstanceOf(FakeAnonymousClass::class, $mock);
+        $this->assertInstanceOf(WeavedInterface::class, $mock);
+    }
 }
diff --git a/tests/Fake/FakeAnonymousClass.php b/tests/Fake/FakeAnonymousClass.php
new file mode 100644
index 00000000..2eedb374
--- /dev/null
+++ b/tests/Fake/FakeAnonymousClass.php
@@ -0,0 +1,13 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Ray\Aop;
+
+class FakeAnonymousClass
+{
+    public function hasAnonymousClass(): object
+    {
+        return new class {};
+    }
+}