diff --git a/src/init.cpp b/src/init.cpp
index 790f9e77..ce9b97ce 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -237,6 +237,7 @@ std::string HelpMessage()
     if (!fHaveGUI)
         strUsage += "  -rpcconnect=<ip>       " + _("Send commands to node running on <ip> (default: 127.0.0.1)") + "\n";
     strUsage += "  -rpcthreads=<n>        " + _("Set the number of threads to service RPC calls (default: 10)") + "\n";
+    strUsage += "  -public_server_mode    " + _("Limit JSON-RPC execution to public/safe commands only.") + "\n";
     strUsage += "  -blocknotify=<cmd>     " + _("Execute command when the best block changes (%s in cmd is replaced by block hash)") + "\n";
     strUsage += "  -walletnotify=<cmd>    " + _("Execute command when a wallet transaction changes (%s in cmd is replaced by TxID)") + "\n";
     strUsage += "  -alertnotify=<cmd>     " + _("Execute command when a relevant alert is received (%s in cmd is replaced by message)") + "\n";