diff --git a/contents.json b/contents.json
index 29c63050..5417b81b 100644
--- a/contents.json
+++ b/contents.json
@@ -13130,7 +13130,7 @@
       "source": "https://github.com/danbeck/green-mahjong",
       "tags": [
         "javascript",
-        "netbeans"
+        "netbeans", "archive"
       ],
       "screenshots": [
         "https://is3-ssl.mzstatic.com/image/thumb/Purple82/v4/b3/d9/e0/b3d9e090-f360-766a-7750-1f8d0a96efae/mzl.piurazqx.png/626x0w.jpg",