diff --git a/src/SymbolTable.cc b/src/SymbolTable.cc
index 3661d4dbd62574f94214e3c4fff88ea776c4b80e..a960c96e4ab3db9c4ba6b85ab496b2659c086d07 100644
--- a/src/SymbolTable.cc
+++ b/src/SymbolTable.cc
@@ -420,8 +420,7 @@ SymbolTable::addLeadAuxiliaryVarInternal(bool endo, int index, expr_t expr_arg)
       exit(EXIT_FAILURE);
     }
 
-  aux_var_info = AuxVarInfo(symb_id, (endo ? AuxVarType::endoLead : AuxVarType::exoLead), 0, 0, 0, 0, expr_arg, "");
-  aux_vars.push_back(aux_var_info);
+    aux_vars.emplace_back({symb_id, (endo ? AuxVarType::endoLead : AuxVarType::exoLead), 0, 0, 0, 0, expr_arg, ""});
 
   return symb_id;
 }
@@ -530,7 +529,7 @@ SymbolTable::addDiffLagAuxiliaryVar(int index, expr_t expr_arg, int orig_symb_id
     }
 
   aux_var_info = AuxVarInfo(symb_id, AuxVarType::diffLag, orig_symb_id, orig_lag, 0, 0, expr_arg, "");
-  aux_vars.psuh_back(aux_var_info);
+  aux_vars.push_back(aux_var_info);
 
   return symb_id;
 }