diff --git a/features/admin_commands.lua b/features/admin_commands.lua
index f4a043b8..d3851ae8 100644
--- a/features/admin_commands.lua
+++ b/features/admin_commands.lua
@@ -241,8 +241,12 @@ local function teleport_command(args, player)
     end
 end
 
+-- Event registrations
+
 Event.add(defines.events.on_built_entity, built_entity)
 
+-- Command registrations
+
 Command.add(
     'a',
     {
diff --git a/features/redmew_commands.lua b/features/redmew_commands.lua
index 8e051acc..ac055b7a 100644
--- a/features/redmew_commands.lua
+++ b/features/redmew_commands.lua
@@ -143,7 +143,7 @@ local function server_time(_, player)
     end
 end
 
-local function search_command(arguments, player)
+local function search_command(arguments)
     local keyword = arguments.keyword
     local p = Game.player_print
     if #keyword < 2 then
@@ -191,7 +191,7 @@ local function search_command(arguments, player)
     p(format('-------- Page %d / %d --------', page, pages))
 end
 
-----------------------------------------------------------------------------------------
+-- Command registrations
 
 Command.add(
     'kill',