diff --git a/src/ai/ai_gui.cpp b/src/ai/ai_gui.cpp
--- a/src/ai/ai_gui.cpp
+++ b/src/ai/ai_gui.cpp
@@ -189,12 +189,13 @@ struct AIListWindow : public Window {
 	 */
 	virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
 	{
-		if (!gui_scope) return;
 		if (_game_mode == GM_NORMAL && Company::IsValidID(this->slot)) {
 			delete this;
 			return;
 		}
 
+		if (!gui_scope) return;
+
 		this->vscroll->SetCount((int)this->ai_info_list->size() + 1);
 
 		/* selected goes from -1 .. length of ai list - 1. */
@@ -450,7 +451,6 @@ struct AISettingsWindow : public Window 
 	 */
 	virtual void OnInvalidateData(int data = 0, bool gui_scope = true)
 	{
-		if (!gui_scope) return;
 		if (_game_mode == GM_NORMAL && Company::IsValidID(this->slot)) delete this;
 	}
 };