2 files changed, 4 insertions, 2 deletions
diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index 2a0c1d641..47a533bf8 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -757,7 +757,8 @@ MouseEvent *Gui::createMouseEvent(Window *const widget)
         mouseX - x, mouseY - y, mClickCount);
 }
 
-void Gui::getAbsolutePosition(gcn::Widget *widget, int &x, int &y)
+void Gui::getAbsolutePosition(gcn::Widget *restrict widget,
+                              int &restrict x, int &restrict y)
 {
     x = 0;
     y = 0;
diff --git a/src/gui/gui.h b/src/gui/gui.h
index 7ac546102..b854a43de 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -147,7 +147,8 @@ class Gui final : public gcn::Gui
 
         MouseEvent *createMouseEvent(Window *const widget) A_WARN_UNUSED;
 
-        void getAbsolutePosition(gcn::Widget *widget, int &x, int &y);
+        void getAbsolutePosition(gcn::Widget *restrict widget,
+                                 int &restrict x, int &restrict y);
 
         void addGlobalFocusListener(gcn::FocusListener* focusListener);