diff --git a/data/sitesEN.json b/data/sitesEN.json
index ef43a69..9d72e93 100644
--- a/data/sitesEN.json
+++ b/data/sitesEN.json
@@ -1246,6 +1246,22 @@
     "destination_platform": "mediawiki",
     "destination_icon": "puellamagi.png"
   },
+  {
+    "id": "en-riichimahjong",
+    "origins_label": "Mahjong Fandom Wiki",
+    "origins": [
+      {
+        "origin": "Mahjong Fandom Wiki",
+        "origin_base_url": "mahjong.fandom.com",
+        "origin_content_path": "/wiki/"
+      }
+    ],
+    "destination": "Japanese Mahjong Wiki",
+    "destination_base_url": "riichi.wiki",
+    "destination_content_path": "/",
+    "destination_platform": "mediawiki",
+    "destination_icon": "japanesemahjongwiki.png"
+  },
   {
     "id": "en-mario",
     "origins_label": "Mario Fandom Wiki",
diff --git a/favicons/en/japanesemahjongwiki.png b/favicons/en/japanesemahjongwiki.png
new file mode 100644
index 0000000..a910cb5
Binary files /dev/null and b/favicons/en/japanesemahjongwiki.png differ