diff --git a/apps/files_sharing/lib/Cache.php b/apps/files_sharing/lib/Cache.php
index f9042fc076569..beba9b5724500 100644
--- a/apps/files_sharing/lib/Cache.php
+++ b/apps/files_sharing/lib/Cache.php
@@ -124,7 +124,11 @@ public function moveFromCache(ICache $sourceCache, $sourcePath, $targetPath) {
 	protected function formatCacheEntry($entry, $path = null) {
 		if (is_null($path)) {
 			$path = $entry['path'] ?? '';
-			$entry['path'] = $this->getJailedPath($path);
+			$jailedPath = $this->getJailedPath($path);
+			if ($jailedPath === null) {
+				return false;
+			}
+			$entry['path'] = $jailedPath;
 		} else {
 			$entry['path'] = $path;
 		}