diff --git a/src/msw/choice.cpp b/src/msw/choice.cpp
index 85eb015339..fd54852b9d 100644
--- a/src/msw/choice.cpp
+++ b/src/msw/choice.cpp
@@ -235,6 +235,8 @@ wxChoice::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 
     // FIXME: Use better dummy window?
     wxWindow* wnd = wxTheApp->GetTopWindow();
+    if (!wnd)
+        return attrs;
 
     attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);