diff --git a/maigret/resources/data.json b/maigret/resources/data.json
index 058e27f..9061896 100644
--- a/maigret/resources/data.json
+++ b/maigret/resources/data.json
@@ -7799,6 +7799,18 @@
             "usernameClaimed": "alex",
             "usernameUnclaimed": "noonewouldeverusethis7"
         },
+        "Joemonster": {
+            "checkType": "message",
+            "presenseStrs": [
+                "Aktywno\u015b\u0107 bojownicza"
+            ],
+            "absenceStrs": [
+                "Nie wiem jak ci to powiedzie\u0107"
+            ],
+            "url": "https://joemonster.org/bojownik/{username}",
+            "usernameClaimed": "uehkon89",
+            "usernameUnclaimed": "noonewouldeverusethis7"
+        },
         "Joomlart": {
             "tags": [
                 "us"