diff --git a/include/wx/dc.h b/include/wx/dc.h
index 90e878d4b1..c3f7c1b1b9 100644
--- a/include/wx/dc.h
+++ b/include/wx/dc.h
@@ -40,6 +40,7 @@ class WXDLLIMPEXP_FWD_CORE wxWindowDC;
 class WXDLLIMPEXP_FWD_CORE wxScreenDC;
 class WXDLLIMPEXP_FWD_CORE wxMemoryDC;
 class WXDLLIMPEXP_FWD_CORE wxPrinterDC;
+class WXDLLIMPEXP_FWD_CORE wxPrintData;
 
 //-----------------------------------------------------------------------------
 // wxDrawObject helper class