diff --git a/W3C.Contracts/Matchmaking/GameMode.cs b/W3C.Contracts/Matchmaking/GameMode.cs
index ec3183b8..84be0ce9 100644
--- a/W3C.Contracts/Matchmaking/GameMode.cs
+++ b/W3C.Contracts/Matchmaking/GameMode.cs
@@ -42,4 +42,6 @@ public enum GameMode
 
     GM_DS = 1101,
     GM_DS_AT = 1102,
+
+    GM_WARHAMMER_1ON1 = 1201,
 }