diff --git a/server/gameserver/gamelog.cc b/server/gameserver/gamelog.cc
index 26bb525..f9a719c 100644
--- a/server/gameserver/gamelog.cc
+++ b/server/gameserver/gamelog.cc
@@ -17,6 +17,7 @@ void GameLog::GameStart(Player* hum)
 
     a8::MutableXObject* prop = a8::MutableXObject::NewObject();
     prop->SetVal("channel", channel);
+    prop->SetVal("ad_channel", "");
     prop->SetVal("from_appid", hum->from_appid);
     prop->SetVal("gameid", GAME_ID);
     prop->SetVal("account_id", hum->account_id);
@@ -50,6 +51,7 @@ void GameLog::GameEnd(Player* hum)
 
     a8::MutableXObject* prop = a8::MutableXObject::NewObject();
     prop->SetVal("channel", channel);
+    prop->SetVal("ad_channel", "");
     prop->SetVal("from_appid", hum->from_appid);
     prop->SetVal("gameid", GAME_ID);
     prop->SetVal("account_id", hum->account_id);