diff --git a/plugins/lua/blueprint.lua b/plugins/lua/blueprint.lua
index 5b5661d19..60319b54c 100644
--- a/plugins/lua/blueprint.lua
+++ b/plugins/lua/blueprint.lua
@@ -107,6 +107,7 @@ local function process_args(opts, args)
         })
 end
 
+-- used by the gui/blueprint script
 function parse_gui_commandline(opts, args)
     local positionals = process_args(opts, args)
     if opts.help then return end