diff --git a/worldedit_commands/init.lua b/worldedit_commands/init.lua
index bf91bce..dd33bc0 100644
--- a/worldedit_commands/init.lua
+++ b/worldedit_commands/init.lua
@@ -114,6 +114,7 @@ end
 function worldedit.register_command(name, def)
 	local def = table.copy(def)
 	assert(name and #name > 0)
+	def.name = name
 	assert(def.privs)
 	def.require_pos = def.require_pos or 0
 	assert(def.require_pos >= 0 and def.require_pos < 3)
@@ -130,6 +131,9 @@ function worldedit.register_command(name, def)
 		minetest.log("warning", "//" .. name .. " might be missing nodes_needed")
 	end--]]
 
+	-- disable further modification
+	setmetatable(def, {__newindex = {}})
+
 	minetest.register_chatcommand("/" .. name, {
 		privs = def.privs,
 		params = def.params,
@@ -304,7 +308,7 @@ worldedit.register_command("about", {
 	end,
 })
 
--- mostly copied from builtin/chatcommands.lua with minor modifications
+-- initially copied from builtin/chatcommands.lua
 worldedit.register_command("help", {
 	privs = {},
 	params = "[all/<cmd>]",
@@ -315,11 +319,16 @@ worldedit.register_command("help", {
 	func = function(name, param)
 		local function format_help_line(cmd, def)
 			local msg = minetest.colorize("#00ffff", "//"..cmd)
-			if def.params and def.params ~= "" then
-				msg = msg .. " " .. def.params
-			end
-			if def.description and def.description ~= "" then
-				msg = msg .. ": " .. def.description
+			if def.name ~= cmd then
+				msg = msg .. ": " .. S("alias to @1",
+					minetest.colorize("#00ffff", "//"..def.name))
+			else
+				if def.params and def.params ~= "" then
+					msg = msg .. " " .. def.params
+				end
+				if def.description and def.description ~= "" then
+					msg = msg .. ": " .. def.description
+				end
 			end
 			return msg
 		end
diff --git a/worldedit_commands/locale/template.txt b/worldedit_commands/locale/template.txt
index 8ea57d1..c915590 100644
--- a/worldedit_commands/locale/template.txt
+++ b/worldedit_commands/locale/template.txt
@@ -26,6 +26,7 @@ Schematic was created with a newer version of WorldEdit.=
 Get information about the WorldEdit mod=
 WorldEdit @1 is available on this server. Type @2 to get a list of commands, or find more information at @3=
 Get help for WorldEdit commands=
+alias to @1=
 You are not allowed to use any WorldEdit commands.=
 Available commands: @1@nUse '@2' to get more information, or '@3' to list everything.=
 Available commands:@n=
diff --git a/worldedit_commands/locale/worldedit_commands.de.tr b/worldedit_commands/locale/worldedit_commands.de.tr
index 2e798c3..2ac6f4d 100644
--- a/worldedit_commands/locale/worldedit_commands.de.tr
+++ b/worldedit_commands/locale/worldedit_commands.de.tr
@@ -37,6 +37,7 @@ Schematic was created with a newer version of WorldEdit.=Schematic wurde mit ein
 Get information about the WorldEdit mod=Informationen über den WorldEdit-Mod erhalten.
 WorldEdit @1 is available on this server. Type @2 to get a list of commands, or find more information at @3=WorldEdit @1 ist auf diesem Server verfügbar. Nutzen Sie @2, um eine Liste der Befehle zu erhalten, oder finden Sie weitere Informationen unter @3
 Get help for WorldEdit commands=Hilfe für WorldEdit-Befehle erhalten
+alias to @1=Alias für @1
 You are not allowed to use any WorldEdit commands.=Ihnen ist nicht erlaubt WorldEdit-Befehle zu nutzen.
 Available commands: @1@nUse '@2' to get more information, or '@3' to list everything.=Verfügbare Befehle: @1@n„@2“ benutzen, um mehr Informationen zu erhalten, oder „@3“, um alles aufzulisten.
 Available commands:@n=Verfügbare Befehle:@n