diff --git a/preprocessor/DataTree.cc b/preprocessor/DataTree.cc
index b45d44794..acbae3488 100644
--- a/preprocessor/DataTree.cc
+++ b/preprocessor/DataTree.cc
@@ -61,7 +61,6 @@ DataTree::reindex(SymbolTable &orig_symbol_table)
   first_deriv_external_function_node_map.clear();
   second_deriv_external_function_node_map.clear();
 
-  reindexExternalFunctions(orig_symbol_table);
   reindexLocalVars(orig_symbol_table);
 }
 
@@ -76,12 +75,6 @@ DataTree::reindexLocalVars(SymbolTable &orig_symbol_table)
                      it->second->cloneDynamicReindex(*this, orig_symbol_table));
 }
 
-void
-DataTree::reindexExternalFunctions(SymbolTable &orig_symbol_table)
-{
-  external_functions_table.reindex(symbol_table, orig_symbol_table);
-}
-
 expr_t
 DataTree::AddNonNegativeConstant(const string &value)
 {
diff --git a/preprocessor/DataTree.hh b/preprocessor/DataTree.hh
index 9d0f746c1..b7cd2565e 100644
--- a/preprocessor/DataTree.hh
+++ b/preprocessor/DataTree.hh
@@ -238,8 +238,6 @@ public:
   void writePowerDerivCHeader(ostream &output) const;
   //! Write getPowerDeriv
   void writePowerDeriv(ostream &output, bool use_dll) const;
-  //! reindex external functions
-  void reindexExternalFunctions(SymbolTable &orig_symbol_table);
   void reindex(SymbolTable &orig_symbol_table);
   void reindexLocalVars(SymbolTable &orig_symbol_table);
   //! Thrown when trying to access an unknown variable by deriv_id
diff --git a/preprocessor/ModFile.cc b/preprocessor/ModFile.cc
index a206a930b..bc9cea5f0 100644
--- a/preprocessor/ModFile.cc
+++ b/preprocessor/ModFile.cc
@@ -316,6 +316,7 @@ ModFile::transformPass(bool nostrict)
       dynamic_model.reindex(orig_symbol_table);
       dynamic_model.reindexStaticOnlyEquations(orig_symbol_table);
 
+      external_functions_table.reindex(symbol_table, orig_symbol_table);
 
       vector<Statement *> orig_statements = statements;
       statements.clear();