diff --git a/src/Fl_Tree.cxx b/src/Fl_Tree.cxx
index a810861cc..2e64f1815 100644
--- a/src/Fl_Tree.cxx
+++ b/src/Fl_Tree.cxx
@@ -1118,7 +1118,9 @@ Fl_Tree_Item* Fl_Tree::insert(Fl_Tree_Item *item, const char *name, int pos) {
 int Fl_Tree::remove(Fl_Tree_Item *item) {
   // Item being removed is focus item? zero focus
   if ( item == _item_focus ) _item_focus = 0;
+#if FLTK_ABI_VERSION >= 10301
   if ( item == _lastselect ) _lastselect = 0;
+#endif /*FLTK_ABI_VERSION*/
   if ( item == _root ) {
     clear();
   } else {
@@ -1137,7 +1139,9 @@ void Fl_Tree::clear() {
   _root->clear_children();
   delete _root; _root = 0;
   _item_focus = 0;
+#if FLTK_ABI_VERSION >= 10301
   _lastselect = 0;
+#endif /*FLTK_ABI_VERSION*/
 } 
 
 /// Clear all the children for \p 'item'.