diff --git a/src/ParsingDriver.cc b/src/ParsingDriver.cc
index 0d3ab077738464a3bedd1e045729bf1ab7bce4d9..a7cd7d15252f3a7accd21a541e165019d37c3143 100644
--- a/src/ParsingDriver.cc
+++ b/src/ParsingDriver.cc
@@ -2189,7 +2189,7 @@ ParsingDriver::ramsey_model()
 void
 ParsingDriver::ramsey_policy()
 {
-  warning("The `ramsey_policy` statement is deprecated. Please use `ramsey_model`, `stoch_simul`, and `evaluate_planner_objective` instead.");
+  warning("The 'ramsey_policy' statement is deprecated. Please use 'ramsey_model', 'stoch_simul', and 'evaluate_planner_objective' instead.");
   if (!mod_file->symbol_table.exists("optimal_policy_discount_factor"))
     declare_optimal_policy_discount_factor_parameter(data_tree->One);
   mod_file->addStatement(make_unique<RamseyPolicyStatement>(mod_file->symbol_table, ramsey_policy_list, options_list));