diff --git a/preprocessor/ComputingTasks.cc b/preprocessor/ComputingTasks.cc
index 1274858b2..1a9e46017 100644
--- a/preprocessor/ComputingTasks.cc
+++ b/preprocessor/ComputingTasks.cc
@@ -1295,6 +1295,29 @@ OsrStatement::checkPass(ModFileStructure &mod_file_struct, WarningConsolidation
     mod_file_struct.k_order_solver = true;
 }
 
+Statement *
+OsrStatement::cloneAndReindexSymbIds(DataTree &dynamic_datatree, SymbolTable &orig_symbol_table)
+{
+  SymbolList new_symbol_list;
+  try
+    {
+      SymbolTable *new_symbol_table =  dynamic_datatree.getSymbolTable();
+      vector<string> symbols = symbol_list.get_symbols();
+      for (vector<string>::const_iterator it = symbols.begin(); it != symbols.end(); it++)
+        {
+          new_symbol_table->getID(*it);
+          new_symbol_list.addSymbol(*it);
+        }
+    }
+  catch (SymbolTable::UnknownSymbolNameException &e)
+    {
+      cerr << "ERROR: A variable in the osr statement was not found in the symbol table" << endl
+           << "       This likely means that you have declared a varexo that is not used in the model" << endl;
+      exit(EXIT_FAILURE);
+    }
+  return new OsrStatement(new_symbol_list, options_list);
+}
+
 void
 OsrStatement::writeOutput(ostream &output, const string &basename) const
 {
diff --git a/preprocessor/ComputingTasks.hh b/preprocessor/ComputingTasks.hh
index 88d51c2cd..3736d0ded 100644
--- a/preprocessor/ComputingTasks.hh
+++ b/preprocessor/ComputingTasks.hh
@@ -246,6 +246,7 @@ public:
                const OptionsList &options_list_arg);
   virtual void checkPass(ModFileStructure &mod_file_struct, WarningConsolidation &warnings);
   virtual void writeOutput(ostream &output, const string &basename) const;
+  virtual Statement *cloneAndReindexSymbIds(DataTree &dynamic_datatree, SymbolTable &orig_symbol_table);
 };
 
 class DynaTypeStatement : public Statement