diff --git a/Classes/Domain/Fusion/PrototypeRepository.php b/Classes/Domain/Fusion/PrototypeRepository.php
index 4bf5bd57..e0c8acbc 100644
--- a/Classes/Domain/Fusion/PrototypeRepository.php
+++ b/Classes/Domain/Fusion/PrototypeRepository.php
@@ -14,6 +14,7 @@
  */
 
 use Neos\Flow\Annotations as Flow;
+use Neos\Fusion\Core\FusionConfiguration;
 use Neos\Fusion\Core\Runtime as FusionRuntime;
 use Neos\Fusion\Core\RuntimeFactory as FusionRuntimeFactory;
 use Sitegeist\Monocle\Fusion\FusionService;
@@ -40,7 +41,9 @@ public function findOneByPrototypeNameInSitePackage(
         string $sitePackageKey
     ): ?Prototype {
         $fusionObjectTree = $this->fusionService->getMergedFusionObjectTreeForSitePackage($sitePackageKey);
-
+        if ($fusionObjectTree instanceof FusionConfiguration) {
+            $fusionObjectTree = $fusionObjectTree->toArray();
+        }
         if (isset($fusionObjectTree['__prototypes'][$prototypeName])) {
             $fusionAst =  $fusionObjectTree['__prototypes'][$prototypeName];
             $fusionRuntime = $this->fusionRuntimeFactory->create($fusionObjectTree);
diff --git a/Classes/Fusion/FusionService.php b/Classes/Fusion/FusionService.php
index 14bc9514..b507e221 100644
--- a/Classes/Fusion/FusionService.php
+++ b/Classes/Fusion/FusionService.php
@@ -35,12 +35,11 @@ class FusionService extends NeosFusionService
      * Returns a merged fusion object tree in the context of the given site-package
      *
      * @param string $siteResourcesPackageKey
-     * @return array The merged object tree as of the given node
      * @throws \Neos\Neos\Domain\Exception
      */
-    public function getMergedFusionObjectTreeForSitePackage($siteResourcesPackageKey)
+    public function getMergedFusionObjectTreeForSitePackage($siteResourcesPackageKey): FusionConfiguration
     {
-        return $this->getFusionConfigurationForPackageKey($siteResourcesPackageKey)->toArray();
+        return $this->getFusionConfigurationForPackageKey($siteResourcesPackageKey);
     }
 
 
@@ -76,12 +75,13 @@ public function getFusionConfigurationForPackageKey(string $packageKey): FusionC
 
     /**
      * Get all styleguide objects for the given fusion-ast
-     *
-     * @param array $fusionAst
-     * @return array
      */
-    public function getStyleguideObjectsFromFusionAst($fusionAst)
+    public function getStyleguideObjectsFromFusionAst(array|FusionConfiguration $fusionAst): array
     {
+        if ($fusionAst instanceof FusionConfiguration) {
+            $fusionAst = $fusionAst->toArray();
+        }
+
         $styleguideObjects = [];
         if ($fusionAst && $fusionAst['__prototypes']) {
             foreach ($fusionAst['__prototypes'] as $prototypeFullName => $prototypeObject) {
diff --git a/Classes/Fusion/FusionView.php b/Classes/Fusion/FusionView.php
index 2c54df69..f62f2b70 100644
--- a/Classes/Fusion/FusionView.php
+++ b/Classes/Fusion/FusionView.php
@@ -14,6 +14,7 @@
  */
 
 use Neos\Flow\Annotations as Flow;
+use Neos\Fusion\Core\FusionConfiguration;
 use Neos\Fusion\View\FusionView as BaseFusionView;
 use Neos\Fusion\Core\Runtime as FusionRuntime;
 use Neos\Flow\I18n\Locale;
@@ -45,8 +46,14 @@ class FusionView extends BaseFusionView
      */
     protected function loadFusion()
     {
-        $fusionAst = $this->fusionService->getMergedFusionObjectTreeForSitePackage($this->getOption('packageKey'));
-        $this->parsedFusion = $fusionAst;
+        /** @todo remove the switch after Neos 8 support is removed */
+        $r = new \ReflectionClass(static::class);
+        $parsedFusionType = $r->getProperty('parsedFusion')->getType();
+        if ($parsedFusionType->getName() === FusionConfiguration::class) {
+            $this->parsedFusion = $this->fusionService->getMergedFusionObjectTreeForSitePackage($this->getOption('packageKey'));
+        } else {
+            $this->parsedFusion = $this->fusionService->getMergedFusionObjectTreeForSitePackage($this->getOption('packageKey'))->toArray();
+        }
     }
 
     /**