diff --git a/parser/suSortPred.h b/parser/suSortPred.h
index 4e4a8f6..e855e21 100644
--- a/parser/suSortPred.h
+++ b/parser/suSortPred.h
@@ -44,7 +44,6 @@ namespace su
     */
     template<class TString>
 	  struct SortByLength
-      :public std::binary_function<TString, TString, bool>
 	  {	
 	    bool operator()(const TString& a_sLeft, const TString& a_sRight) const
       {