diff --git a/include/wx/dataview.h b/include/wx/dataview.h
index dbef9d872a..cd2ff3a4ce 100644
--- a/include/wx/dataview.h
+++ b/include/wx/dataview.h
@@ -432,7 +432,6 @@ public:
 
 private:
     unsigned int m_size;
-    bool m_ordered;
 };
 #endif