diff --git a/src/SymbolTable.cc b/src/SymbolTable.cc
index c5aab24f7edefd485b17590be15be292e0acb783..078b41be8f9ef14ab5e7a4b2d0a583be0cefd765 100644
--- a/src/SymbolTable.cc
+++ b/src/SymbolTable.cc
@@ -591,7 +591,7 @@ SymbolTable::addUnaryOpAuxiliaryVar(int index, expr_t expr_arg, string unary_op,
       exit(EXIT_FAILURE);
     }
 
-  AuxVarInfo aux_var_info = {symb_id, AuxVarType::unaryOp, move(orig_symb_id), move(orig_lag), 0, 0, expr_arg, unary_op);
+  AuxVarInfo aux_var_info = {symb_id, AuxVarType::unaryOp, move(orig_symb_id), move(orig_lag), 0, 0, expr_arg, unary_op};
   aux_vars.emplace_back(aux_var_info);
 
   return symb_id;