diff --git a/include/wx/html/winpars.h b/include/wx/html/winpars.h
index f634481287..3347e4e369 100644
--- a/include/wx/html/winpars.h
+++ b/include/wx/html/winpars.h
@@ -259,7 +259,7 @@ private:
 //                  the wxHtmlWinParser object
 //-----------------------------------------------------------------------------
 
-class WXDLLIMPEXP_HTML wxHtmlStyleParams;
+class WXDLLIMPEXP_FWD_HTML wxHtmlStyleParams;
 
 class WXDLLIMPEXP_HTML wxHtmlWinTagHandler : public wxHtmlTagHandler
 {
diff --git a/include/wx/osx/core/evtloop.h b/include/wx/osx/core/evtloop.h
index 79e7f2d9ba..cae3c8e78f 100644
--- a/include/wx/osx/core/evtloop.h
+++ b/include/wx/osx/core/evtloop.h
@@ -15,7 +15,7 @@
 DECLARE_WXOSX_OPAQUE_CFREF( CFRunLoop );
 DECLARE_WXOSX_OPAQUE_CFREF( CFRunLoopObserver );
 
-class WXDLLIMPEXP_BASE wxCFEventLoopPauseIdleEvents;
+class WXDLLIMPEXP_FWD_BASE wxCFEventLoopPauseIdleEvents;
 
 class WXDLLIMPEXP_BASE wxCFEventLoop : public wxEventLoopBase
 {