diff --git a/lib/private/Files/Storage/Local.php b/lib/private/Files/Storage/Local.php
index ac3696118f7ee..6f6ffc8cb9e50 100644
--- a/lib/private/Files/Storage/Local.php
+++ b/lib/private/Files/Storage/Local.php
@@ -399,8 +399,8 @@ public function fopen($path, $mode) {
 		return $result;
 	}
 
-	public function hash($type, $path, $raw = false) {
-		return hash_file($type, $this->getSourcePath($path), $raw);
+	public function hash($type, $path, $raw = false): string|false {
+		return hash_file($type, $this->getSourcePath($path), $raw) ?? false;
 	}
 
 	public function free_space($path) {