diff --git a/ExprNode.cc b/ExprNode.cc
index 0501d18a..54bc4189 100644
--- a/ExprNode.cc
+++ b/ExprNode.cc
@@ -7397,10 +7397,26 @@ PacExpectationNode::writeOutput(ostream &output, ExprNodeOutputType output_type,
          << "M_.pac_expectation." << model_name << ".equation_number = " << equation_number + 1 << ";" << endl;
 
   if (growth_symb_id >= 0)
-    output << "M_.pac_expectation." << model_name << ".growth_name = '"
-           << datatree.symbol_table.getName(growth_symb_id) << "';" << endl
-           << "M_.pac_expectation." << model_name << ".growth_neutrality_param_index = "
-           << datatree.symbol_table.getTypeSpecificID(growth_param_index) + 1 << ";" << endl;
+    output << "M_.pac_expectation." << model_name << ".growth_neutrality_param_index = "
+           << datatree.symbol_table.getTypeSpecificID(growth_param_index) + 1 << ";" << endl
+           << "M_.pac_expectation." << model_name << ".growth_index = "
+           << datatree.symbol_table.getTypeSpecificID(growth_symb_id) + 1 << ";" << endl
+           << "M_.pac_expectation." << model_name << ".growth_type = ";
+  switch(datatree.symbol_table.getType(growth_symb_id))
+    {
+    case eEndogenous:
+      output << "'endogenous';" << endl;
+      break;
+    case eExogenous:
+      output << "'exogenous';" << endl;
+      break;
+    case eParameter:
+      output << "'exogenous';" << endl;
+      break;
+    default:
+      cerr << "pac_expectation: error encountered in growth type" << endl;
+      exit(EXIT_FAILURE);
+    }
 
   output << "M_.pac_expectation." << model_name << ".equation_params = [";
   for (set<pair<int, pair<int, int> > >::const_iterator it = params_and_vals.begin();