diff --git a/source/graphics/ObjectEntry.h b/source/graphics/ObjectEntry.h
index 132ceb917e..a7271cae16 100644
--- a/source/graphics/ObjectEntry.h
+++ b/source/graphics/ObjectEntry.h
@@ -37,6 +37,8 @@ struct SPropPoint;
 
 class CObjectEntry
 {
+	NONCOPYABLE(CObjectEntry);
+
 public:
 	CObjectEntry(CObjectBase* base, CSimulation2& simulation);
 	~CObjectEntry();