diff --git a/src/transparency_gui.cpp b/src/transparency_gui.cpp
--- a/src/transparency_gui.cpp
+++ b/src/transparency_gui.cpp
@@ -5,7 +5,6 @@
 #include "table/sprites.h"
 #include "table/strings.h"
 #include "functions.h"
-#include "window.h"
 #include "gui.h"
 #include "viewport.h"
 #include "gfx.h"