diff --git a/src/propgrid/advprops.cpp b/src/propgrid/advprops.cpp
index 5db4043014..13b58a582c 100644
--- a/src/propgrid/advprops.cpp
+++ b/src/propgrid/advprops.cpp
@@ -1891,7 +1891,7 @@ void wxImageFileProperty::OnCustomPaint( wxDC& dc,
         {
             wxImage imgScaled = m_image;
             imgScaled.Rescale(rect.width, rect.height);
-#ifdef __WSMSW__
+#ifdef __WXMSW__
             m_bitmap = wxBitmap(imgScaled, dc);
 #else
             m_bitmap = wxBitmap(imgScaled);