diff --git a/apps/dav/lib/CalDAV/Sharing/Service.php b/apps/dav/lib/CalDAV/Sharing/Service.php
index 35704061c1249..cdf8c892ab533 100644
--- a/apps/dav/lib/CalDAV/Sharing/Service.php
+++ b/apps/dav/lib/CalDAV/Sharing/Service.php
@@ -27,7 +27,7 @@
 
 class Service extends SharingService {
 	protected string $resourceType = 'calendar';
-	public function __construct(SharingMapper $mapper) {
+	public function __construct(protected SharingMapper $mapper) {
 		parent::__construct($mapper);
 	}
 }
diff --git a/apps/dav/lib/CardDAV/Sharing/Service.php b/apps/dav/lib/CardDAV/Sharing/Service.php
index c275f998272fb..5da71defb5ead 100644
--- a/apps/dav/lib/CardDAV/Sharing/Service.php
+++ b/apps/dav/lib/CardDAV/Sharing/Service.php
@@ -27,7 +27,7 @@
 
 class Service extends SharingService {
 	protected string $resourceType = 'addressbook';
-	public function __construct(SharingMapper $mapper) {
+	public function __construct(protected SharingMapper $mapper) {
 		parent::__construct($mapper);
 	}
 }
diff --git a/apps/dav/lib/DAV/Sharing/SharingService.php b/apps/dav/lib/DAV/Sharing/SharingService.php
index 899b9cb569b48..4b2a0beed1cf0 100644
--- a/apps/dav/lib/DAV/Sharing/SharingService.php
+++ b/apps/dav/lib/DAV/Sharing/SharingService.php
@@ -23,7 +23,7 @@
 
 abstract class SharingService {
 	protected string $resourceType = '';
-	public function __construct(private SharingMapper $mapper) {
+	public function __construct(protected SharingMapper $mapper) {
 	}
 
 	public function getResourceType(): string {