diff --git a/src/common/datavcmn.cpp b/src/common/datavcmn.cpp
index cd2af9dc20..876984c80a 100644
--- a/src/common/datavcmn.cpp
+++ b/src/common/datavcmn.cpp
@@ -40,6 +40,7 @@ wxDataViewModel::wxDataViewModel()
 {
     m_notifiers.DeleteContents( true );
     m_sortingColumn = 0;
+    m_ascending = true;
 }
 
 bool wxDataViewModel::ItemAdded( const wxDataViewItem &parent, const wxDataViewItem &item )