diff --git a/src/servers/app/drawing/interface/virtual/DWindowBuffer.h b/src/servers/app/drawing/interface/virtual/DWindowBuffer.h
index 44cd209075..0c878eb427 100644
--- a/src/servers/app/drawing/interface/virtual/DWindowBuffer.h
+++ b/src/servers/app/drawing/interface/virtual/DWindowBuffer.h
@@ -21,6 +21,8 @@ public:
 	virtual	uint32				Width() const;
 	virtual	uint32				Height() const;
 
+	virtual	bool				IsGraphicsMemory() const { return true; /* TODO! */ }
+
 			void				SetTo(direct_buffer_info* info);
 
 			void				SetTo(frame_buffer_config* config,