diff --git a/config/set/contentrepository-90.php b/config/set/contentrepository-90.php
index 15b909b..20a2ee8 100644
--- a/config/set/contentrepository-90.php
+++ b/config/set/contentrepository-90.php
@@ -635,6 +635,7 @@
     \Neos\ContentRepository\Domain\Projection\Content\PropertyCollectionInterface::class => \Neos\ContentRepository\Core\Projection\ContentGraph\PropertyCollection::class,
     \Neos\ContentRepository\Domain\Model\ArrayPropertyCollection::class => \Neos\ContentRepository\Core\Projection\ContentGraph\PropertyCollection::class,
     \Neos\Neos\Routing\FrontendNodeRoutePartHandlerInterface::class => \Neos\Neos\FrontendRouting\FrontendNodeRoutePartHandlerInterface::class,
+    \Neos\ContentRepository\NodeTypePostprocessor\NodeTypePostprocessorInterface::class => \Neos\ContentRepository\Core\NodeType\NodeTypePostprocessorInterface::class,
 ]);
 
 /**
diff --git a/tests/Sets/ContentRepository90/Fixture/nodetype-postprocessor.php.inc b/tests/Sets/ContentRepository90/Fixture/nodetype-postprocessor.php.inc
new file mode 100644
index 0000000..069a9d2
--- /dev/null
+++ b/tests/Sets/ContentRepository90/Fixture/nodetype-postprocessor.php.inc
@@ -0,0 +1,31 @@
+<?php
+declare(strict_types=1);
+
+namespace Neos\MarketPlace\Domain\Model;
+
+use Neos\ContentRepository\NodeTypePostprocessor\NodeTypePostprocessorInterface;
+use Neos\Flow\Annotations as Flow;
+
+class SomeClass implements NodeTypePostprocessorInterface
+{
+    public function doSomethingElse()
+    {
+    }
+
+}
+-----
+<?php
+declare(strict_types=1);
+
+namespace Neos\MarketPlace\Domain\Model;
+
+use Neos\ContentRepository\NodeTypePostprocessor\NodeTypePostprocessorInterface;
+use Neos\Flow\Annotations as Flow;
+
+class SomeClass implements \Neos\ContentRepository\Core\NodeType\NodeTypePostprocessorInterface
+{
+    public function doSomethingElse()
+    {
+    }
+
+}