diff --git a/include/wx/window.h b/include/wx/window.h
index af98d65c85..c7cbaa4611 100644
--- a/include/wx/window.h
+++ b/include/wx/window.h
@@ -865,7 +865,7 @@ protected:
     wxString             m_windowName;
     bool                 m_themeEnabled;
 
-#ifdef wxUSE_PALETTE
+#if wxUSE_PALETTE
     wxPalette            m_palette;
     bool                 m_hasCustomPalette;
 #endif // wxUSE_PALETTE