diff --git a/lib/Sabre/PropFindPlugin.php b/lib/Sabre/PropFindPlugin.php
index 2679506af7..89ad4e864e 100644
--- a/lib/Sabre/PropFindPlugin.php
+++ b/lib/Sabre/PropFindPlugin.php
@@ -106,7 +106,7 @@ public function propFind(PropFind $propFind, INode $node): void {
 			});
 
 			foreach ($node->getFileInfo()->getMetadata() as $metadataKey => $metadataValue) {
-				$propFind->handle(FilesPlugin::FILE_METADATA_PREFIX.$metadataKey, $metadataValue);
+				$propFind->handle(FilesPlugin::FILE_METADATA_PREFIX . $metadataKey, fn () => $metadataValue);
 			}