diff --git a/lib/download.js b/lib/download.js
index 0eb322b..188ba3b 100644
--- a/lib/download.js
+++ b/lib/download.js
@@ -179,6 +179,7 @@ class Downloader {
             console.error('upload image failed:', url, content);
             throw new Error('upload image failed:', result);
         }
+        console.log(`upload image success: ${imageName}`);
         return result.data.content.html_url;
     }