diff --git a/utils/emulator/src/emulator.cpp b/utils/emulator/src/emulator.cpp
index 1c05b55bdc..09cc8b6d07 100644
--- a/utils/emulator/src/emulator.cpp
+++ b/utils/emulator/src/emulator.cpp
@@ -349,7 +349,7 @@ void wxEmulatorContainer::DoResize()
     wxSize sz = GetClientSize();
     if (wxGetApp().m_xnestWindow
 #ifdef __WXX11__
-        && wxGetApp().m_xnestWindow->GetMainWindow()
+        && wxGetApp().m_xnestWindow->X11GetMainWindow()
 #endif
         )
     {