diff --git a/projects/openttd_vs80.vcproj b/projects/openttd_vs80.vcproj
--- a/projects/openttd_vs80.vcproj
+++ b/projects/openttd_vs80.vcproj
@@ -1024,6 +1024,10 @@
>
+
+
diff --git a/projects/openttd_vs90.vcproj b/projects/openttd_vs90.vcproj
--- a/projects/openttd_vs90.vcproj
+++ b/projects/openttd_vs90.vcproj
@@ -1021,6 +1021,10 @@
>
+
+
diff --git a/source.list b/source.list
--- a/source.list
+++ b/source.list
@@ -165,6 +165,7 @@ genworld.h
gfx_func.h
gfx_type.h
gfxinit.h
+graph_gui.h
group.h
group_gui.h
group_type.h
diff --git a/src/graph_gui.cpp b/src/graph_gui.cpp
--- a/src/graph_gui.cpp
+++ b/src/graph_gui.cpp
@@ -11,7 +11,7 @@
#include "stdafx.h"
#include "openttd.h"
-#include "gui.h"
+#include "graph_gui.h"
#include "window_gui.h"
#include "company_base.h"
#include "company_gui.h"
diff --git a/src/graph_gui.h b/src/graph_gui.h
new file mode 100644
--- /dev/null
+++ b/src/graph_gui.h
@@ -0,0 +1,24 @@
+/* $Id$ */
+
+/*
+ * This file is part of OpenTTD.
+ * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
+ * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see .
+ */
+
+/** @file graph_gui.h Graph GUI functions. */
+
+#ifndef GRAPH_GUI_H
+#define GRAPH_GUI_H
+
+void ShowOperatingProfitGraph();
+void ShowIncomeGraph();
+void ShowDeliveredCargoGraph();
+void ShowPerformanceHistoryGraph();
+void ShowCompanyValueGraph();
+void ShowCargoPaymentRates();
+void ShowCompanyLeagueTable();
+void ShowPerformanceRatingDetail();
+
+#endif /* GRAPH_GUI_H */
diff --git a/src/gui.h b/src/gui.h
--- a/src/gui.h
+++ b/src/gui.h
@@ -29,16 +29,6 @@ void ShowGameDifficulty();
void ShowGameSettings();
void DrawArrowButtons(int x, int y, Colours button_colour, byte state, bool clickable_left, bool clickable_right);
-/* graph_gui.cpp */
-void ShowOperatingProfitGraph();
-void ShowIncomeGraph();
-void ShowDeliveredCargoGraph();
-void ShowPerformanceHistoryGraph();
-void ShowCompanyValueGraph();
-void ShowCargoPaymentRates();
-void ShowCompanyLeagueTable();
-void ShowPerformanceRatingDetail();
-
/* train_gui.cpp */
void ShowOrdersWindow(const Vehicle *v);
diff --git a/src/toolbar_gui.cpp b/src/toolbar_gui.cpp
--- a/src/toolbar_gui.cpp
+++ b/src/toolbar_gui.cpp
@@ -42,6 +42,7 @@
#include "widgets/dropdown_type.h"
#include "company_base.h"
#include "smallmap_gui.h"
+#include "graph_gui.h"
#include "network/network.h"
#include "network/network_gui.h"