diff --git a/client/battle/BattleInterfaceClasses.cpp b/client/battle/BattleInterfaceClasses.cpp
index a6289d07f..7f2f0647d 100644
--- a/client/battle/BattleInterfaceClasses.cpp
+++ b/client/battle/BattleInterfaceClasses.cpp
@@ -636,7 +636,9 @@ void BattleResultWindow::show(Canvas & to)
 
 void BattleResultWindow::buttonPressed(int button)
 {
-	resultCallback(button);
+	if (resultCallback)
+		resultCallback(button);
+
 	CPlayerInterface &intTmp = owner; //copy reference because "this" will be destructed soon
 
 	close();