diff --git a/lib/private/Files/Storage/Local.php b/lib/private/Files/Storage/Local.php
index eec1c236116c9..7ca1a2d6f37f1 100644
--- a/lib/private/Files/Storage/Local.php
+++ b/lib/private/Files/Storage/Local.php
@@ -400,7 +400,7 @@ public function fopen($path, $mode) {
 		return $result;
 	}
 
-	public function hash($type, $path, $raw = false) {
+	public function hash($type, $path, $raw = false): string|false {
 		return hash_file($type, $this->getSourcePath($path), $raw);
 	}
 
diff --git a/lib/private/Files/Storage/Wrapper/Availability.php b/lib/private/Files/Storage/Wrapper/Availability.php
index 149cbbaa33b8f..6bd622e1c1bb1 100644
--- a/lib/private/Files/Storage/Wrapper/Availability.php
+++ b/lib/private/Files/Storage/Wrapper/Availability.php
@@ -315,6 +315,7 @@ public function hash($type, $path, $raw = false) {
 			return parent::hash($type, $path, $raw);
 		} catch (StorageNotAvailableException $e) {
 			$this->setUnavailable($e);
+			return false;
 		}
 	}