diff --git a/lib/public/App/IAppManager.php b/lib/public/App/IAppManager.php
index 36ab236b92ef7..ef8a7b8d9f0e8 100644
--- a/lib/public/App/IAppManager.php
+++ b/lib/public/App/IAppManager.php
@@ -89,6 +89,7 @@ public function isInstalled($appId);
 	 * Notice: This actually checks if the app should be enabled by default
 	 * and not if currently installed/enabled
 	 *
+	 * @param string $appId
 	 * @since 25.0.0
 	 */
 	public function isDefaultEnabled(string $appId):bool;