diff --git a/vcl/inc/impgraph.hxx b/vcl/inc/impgraph.hxx
index 23d482aded23..fd6446e1972a 100644
--- a/vcl/inc/impgraph.hxx
+++ b/vcl/inc/impgraph.hxx
@@ -57,7 +57,7 @@ enum class GraphicContentType : sal_Int32
     Vector
 };
 
-class ImpGraphic final  : public vcl::graphic::MemoryManaged
+class SAL_DLLPUBLIC_RTTI ImpGraphic final  : public vcl::graphic::MemoryManaged
 {
     friend class Graphic;
     friend class GraphicID;