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-rw-r--r--src/gui/okdialog.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/gui/okdialog.h b/src/gui/okdialog.h
index 2ee8653ec..2f32d0d65 100644
--- a/src/gui/okdialog.h
+++ b/src/gui/okdialog.h
@@ -23,6 +23,8 @@
#ifndef OK_DIALOG_H
#define OK_DIALOG_H
+#include "localconsts.h"
+
#include "gui/widgets/window.h"
#include <guichan/actionlistener.hpp>
@@ -44,7 +46,7 @@ class OkDialog : public Window, public gcn::ActionListener
*/
OkDialog(const std::string &title, const std::string &msg,
bool modal = true, bool showCenter = true,
- Window *parent = NULL);
+ Window *parent = nullptr);
/**
* Called when receiving actions from the widgets.