diff --git a/source/Platform/PlatformDisplay.h b/source/Platform/PlatformDisplay.h
index 2147230..ea97578 100644
--- a/source/Platform/PlatformDisplay.h
+++ b/source/Platform/PlatformDisplay.h
@@ -39,6 +39,8 @@ public :
 
 	virtual void setVisible(bool visible) = 0;
 
+	virtual void setDecoration(unsigned decoration) = 0;
+
 	virtual void minimize() = 0;
 
 	virtual void maximize() = 0;