diff --git a/src/gui/dialogs/unit_attack.cpp b/src/gui/dialogs/unit_attack.cpp
index baf8c4f22ea..d036f635d44 100644
--- a/src/gui/dialogs/unit_attack.cpp
+++ b/src/gui/dialogs/unit_attack.cpp
@@ -93,7 +93,9 @@ void unit_attack::damage_calc_callback(window& window)
 {
 	const size_t index = find_widget<listbox>(&window, "weapon_list", false).get_selected_row();
 
-	attack_predictions::display(weapons_[index], *attacker_itor_, *defender_itor_, window.video());
+	if(gui2::new_widgets) {
+		attack_predictions::display(weapons_[index], *attacker_itor_, *defender_itor_, window.video());
+	}
 
 	// TODO: remove when the GUI2 dialog is complete
 	battle_prediction_pane battle_pane(weapons_[index], (*attacker_itor_).get_location(), (*defender_itor_).get_location());