diff --git a/src/rpc/server.cpp b/src/rpc/server.cpp
--- a/src/rpc/server.cpp
+++ b/src/rpc/server.cpp
@@ -222,9 +222,6 @@
     return ParseHexV(find_value(o, strKey), strKey);
 }
 
-/**
- * Note: This interface may still be subject to change.
- */
 std::string CRPCTable::help(Config &config, const std::string &strCommand,
                             const JSONRPCRequest &helpreq) const {
     std::string strRet;
@@ -291,11 +288,10 @@
                 "help",
                 "\nList all commands, or get help for a specified command.\n",
                 {
-                    {"command", RPCArg::Type::STR, true},
+                    {"command", RPCArg::Type::STR, /* opt */ true,
+                     /* default_val */ "", "The command to get help on"},
                 }}
-                .ToString() +
-            "\nArguments:\n"
-            "1. \"command\"     (string, optional) The command to get help on\n"
+                .ToStringWithArgs() +
             "\nResult:\n"
             "\"text\"     (string) The help text\n");
     }
@@ -369,9 +365,6 @@
     return result;
 }
 
-/**
- * Call Table
- */
 // clang-format off
 static const ContextFreeRPCCommand vRPCCommands[] = {
     //  category            name                      actor (function)        argNames