diff --git a/lib/private/FullTextSearch/FullTextSearchManager.php b/lib/private/FullTextSearch/FullTextSearchManager.php
index acaf519209b62..d4d2e740613de 100644
--- a/lib/private/FullTextSearch/FullTextSearchManager.php
+++ b/lib/private/FullTextSearch/FullTextSearchManager.php
@@ -39,11 +39,11 @@
  * @package OC\FullTextSearch
  */
 class FullTextSearchManager implements IFullTextSearchManager {
-	private ?IProviderService $providerService;
+	private ?IProviderService $providerService = null;
 
-	private ?IIndexService $indexService;
+	private ?IIndexService $indexService = null;
 
-	private ?ISearchService $searchService;
+	private ?ISearchService $searchService = null;
 
 	/**
 	 * @since 15.0.0