diff --git a/src/NumericalInitialization.cc b/src/NumericalInitialization.cc
index ad19ffc9f842097a29ffa5986043cc8671be86f9..b044e293d8b7ade905ae058600d36b08dcc66ea6 100644
--- a/src/NumericalInitialization.cc
+++ b/src/NumericalInitialization.cc
@@ -611,7 +611,7 @@ LoadParamsAndSteadyStateStatement::writeOutput(ostream &output, const string &ba
 void
 LoadParamsAndSteadyStateStatement::writeJsonOutput(ostream &output) const
 {
-  output << R"({"statementName": "load_params_and_steady_state")"
+  output << R"({"statementName": "load_params_and_steady_state",)"
          << R"("values": [)";
   for (auto it = content.begin(); it != content.end(); ++it)
     {