diff --git a/src/genworld_gui.cpp b/src/genworld_gui.cpp
--- a/src/genworld_gui.cpp
+++ b/src/genworld_gui.cpp
@@ -9,7 +9,10 @@
 #include "table/strings.h"
 #include "table/sprites.h"
 #include "gui.h"
+#include "window_gui.h"
+#include "textbuf_gui.h"
 #include "gfx.h"
+#include "tile.h"
 #include "strings.h"
 #include "gfxinit.h"
 #include "player.h"