diff --git a/include/wx/window.h b/include/wx/window.h
index 63b37aedc4..b754c4ac8e 100644
--- a/include/wx/window.h
+++ b/include/wx/window.h
@@ -1120,8 +1120,6 @@ protected:
 #if wxUSE_ACCESSIBILITY
     wxAccessible*       m_accessible;
 #endif
-    // Best size for controls which fail to implement DoGetBestSize()
-    wxSize              m_bestSize;
 
     // Virtual size (scrolling)
     wxSize                m_virtualSize;
diff --git a/src/generic/vlbox.cpp b/src/generic/vlbox.cpp
index 903e187827..989f6f797d 100644
--- a/src/generic/vlbox.cpp
+++ b/src/generic/vlbox.cpp
@@ -84,8 +84,6 @@ bool wxVListBox::Create(wxWindow *parent,
 
     m_colBgSel = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
 
-    m_bestSize = GetSize();
-    
     return true;
 }