diff --git a/src/ai/default/default.cpp b/src/ai/default/default.cpp
--- a/src/ai/default/default.cpp
+++ b/src/ai/default/default.cpp
@@ -26,6 +26,8 @@
 #include "../../bridge.h"
 #include "../../date.h"
 #include "../../tunnelbridge_map.h"
+#include "../../window_func.h"
+#include "../../functions.h"
 #include "default.h"