diff --git a/roles/osm-vector-maps/templates/iiab-update-map b/roles/osm-vector-maps/templates/iiab-update-map
index 3d72bba62..837bc9e85 100755
--- a/roles/osm-vector-maps/templates/iiab-update-map
+++ b/roles/osm-vector-maps/templates/iiab-update-map
@@ -192,14 +192,11 @@ def fetch_menu_json_value(key):
       return data.get(key,'')
 
 def extract_region_from_filename(fname):
-   substitutions = { "north": "north_america",\
-                     "central": "central_america",\
-                     "southeast": "southeast_asia",
-                     "south": "south_america" }
-   # wish I had used - as separator between key and date
-   nibble = fname.split('_')[0]
-   nibble = substitutions.get(nibble,nibble)
-   return(nibble)
+   nibble = re.search(r"^.._osm_..._(.*)_[0-9]{4}",fname)
+   if not nibble:
+      return("maplist")
+   resp = nibble.group(1)
+   return(resp)
 
 if __name__ == '__main__':
    if console_installed: