diff --git a/server/gameserver/stats.cc b/server/gameserver/stats.cc
index f4624d61..9b7189e4 100644
--- a/server/gameserver/stats.cc
+++ b/server/gameserver/stats.cc
@@ -219,9 +219,13 @@ void PlayerStats::Statement(Human* sender)
     }
     game_time = f8::App::Instance()->GetNowTime();
     if (sender->GetBattleStartTime() <= 0) {
+        game_duration = 0;
+#ifdef MYDEBUG
         abort();
+#endif
+    } else {
+        game_duration = game_time - sender->GetBattleStartTime();
     }
-    game_duration = game_time - sender->GetBattleStartTime();
     statemented = 1;
 }