diff --git a/preprocessor/ExprNode.cc b/preprocessor/ExprNode.cc index 9acb5c18dc7a6246635d3bc676fc21c4de6a377f..3974cbbfcb2486397f8314eca8a4dc45d5e8c088 100644 --- a/preprocessor/ExprNode.cc +++ b/preprocessor/ExprNode.cc @@ -1642,7 +1642,9 @@ UnaryOpNode::writeOutput(ostream &output, ExprNodeOutputType output_type, new_output_type = output_type; break; } + output << "("; arg->writeOutput(output, new_output_type, temporary_terms, tef_terms); + output << ")"; return; case oSteadyStateParamDeriv: {