diff --git a/ext_proc.lua b/ext_proc.lua
index c9d6c95..79f2618 100644
--- a/ext_proc.lua
+++ b/ext_proc.lua
@@ -56,8 +56,17 @@ local MODULE = "ext_proc"
 
 du.check_min_api_version("7.0.0", MODULE) 
 
+-- from https://github.com/ChristianBirzer/darktable_extra_scripts/blob/main/HeliconFocus.lua
+-- find locale directory:
+local scriptfile = debug.getinfo( 1, "S" )
+local localedir = dt.configuration.config_dir..'/lua/locale/'
+if scriptfile ~= nil and scriptfile.source ~= nil then
+  local path = scriptfile.source:match( "[^@].*[/\\]" )
+  localedir = path..os_path_seperator..'locale'
+end
+dt.print_log( "localedir: "..localedir )
+
 local gettext = dt.gettext
-local localedir = dt.configuration.config_dir .. "/lua/locale/"
 gettext.bindtextdomain(MODULE, localedir)
 
 local function _(msgid)