diff --git a/lib/api/get-log.js b/lib/api/get-log.js
index d517166..3bf99f7 100644
--- a/lib/api/get-log.js
+++ b/lib/api/get-log.js
@@ -18,6 +18,7 @@ module.exports = async (req, res) => {
   if (isNaN (app_id)) {
     res.status (http.status_bad_request)
       .end ('app id not specified');
+    return;
   }
 
   res.status (http.status_ok)