diff --git a/lib/private/Installer.php b/lib/private/Installer.php
index 3d8a923417a5d..009df7905854d 100644
--- a/lib/private/Installer.php
+++ b/lib/private/Installer.php
@@ -614,7 +614,7 @@ public static function checkCode($folder) {
 		}
 
 		$codeChecker = new CodeChecker(new PrivateCheck(new EmptyCheck()));
-		$errors = $codeChecker->analyseFolder($folder);
+		$errors = $codeChecker->analyseFolder(basename($folder), $folder);
 
 		return empty($errors);
 	}