diff --git a/ModFile.cc b/ModFile.cc
index 0b52a1b5..7d7b4168 100644
--- a/ModFile.cc
+++ b/ModFile.cc
@@ -645,9 +645,6 @@ ModFile::writeOutputFiles(const string &basename, bool clear_all, bool clear_glo
     mOutputFile << "clear M_ options_ oo_ estim_params_ bayestopt_ dataset_ dataset_info estimation_info ys0_ ex0_;" << endl;
 
   mOutputFile << "tic0 = tic;" << endl
-	      << "% Save empty dates and dseries objects in memory." << endl
-	      << "dates('initialize');" << endl
-	      << "dseries('initialize');" << endl
 	      << "% Define global variables." << endl
               << "global M_ options_ oo_ estim_params_ bayestopt_ dataset_ dataset_info estimation_info ys0_ ex0_" << endl
               << "options_ = [];" << endl