diff --git a/src/goal_gui.cpp b/src/goal_gui.cpp
--- a/src/goal_gui.cpp
+++ b/src/goal_gui.cpp
@@ -12,7 +12,6 @@
 #include "town.h"
 #include "window_gui.h"
 #include "strings_func.h"
-#include "date_func.h"
 #include "viewport_func.h"
 #include "gui.h"
 #include "goal_base.h"