diff --git a/eo/src/do/make_checkpoint.h b/eo/src/do/make_checkpoint.h
index f18943df..dcb99c07 100644
--- a/eo/src/do/make_checkpoint.h
+++ b/eo/src/do/make_checkpoint.h
@@ -82,15 +82,16 @@ bool testDirRes(std::string _dirName, bool _erase);
 
 
 
-
+/**
+ * 
+ * CHANGE (March 2008): now receiving an eoValueParam instead of an eoEvalFuncCounter. This function is just interested 
+ * in the value of the parameter calculated on the evaluation function, not in the actual function itself!!   
+*/  
 template <class EOT>
-
-eoCheckPoint<EOT>& do_make_checkpoint(eoParser& _parser, eoState& _state, eoEvalFuncCounter<EOT>& _eval, eoContinue<EOT>& _continue)
-
+eoCheckPoint<EOT>& do_make_checkpoint(eoParser& _parser, eoState& _state, eoValueParam<unsigned long>& _eval, eoContinue<EOT>& _continue)
 {
 
   // first, create a checkpoint from the eoContinue
-
   eoCheckPoint<EOT> *checkpoint = new eoCheckPoint<EOT>(_continue);
 
   _state.storeFunctor(checkpoint);