diff --git a/lib/Mount/GroupMountPoint.php b/lib/Mount/GroupMountPoint.php
index fa72e71f3..91ea0ddbb 100644
--- a/lib/Mount/GroupMountPoint.php
+++ b/lib/Mount/GroupMountPoint.php
@@ -8,11 +8,12 @@
 
 use OC\Files\Mount\MountPoint;
 use OC\Files\Storage\Storage;
+use OCP\Files\Mount\IShareCoOwnerMount;
 use OCP\Files\Mount\ISystemMountPoint;
 use OCP\Files\Storage\IStorage;
 use OCP\Files\Storage\IStorageFactory;
 
-class GroupMountPoint extends MountPoint implements ISystemMountPoint {
+class GroupMountPoint extends MountPoint implements ISystemMountPoint, IShareCoOwnerMount {
 	public function __construct(
 		private int $folderId,
 		IStorage $storage,