diff --git a/translations/.tx/config b/translations/.tx/config
index f1603f25af..504b39c7e5 100644
--- a/translations/.tx/config
+++ b/translations/.tx/config
@@ -1,3 +1,15 @@
 [main]
 host = https://www.transifex.com
 
+[calibre.main]
+file_filter = calibre/<lang>.po
+source_file = calibre/main.pot
+source_lang = en
+type = PO
+
+[calibre.iso639]
+file_filter = iso_639/<lang>.po
+source_file = iso_639/iso_639_3.pot
+source_lang = en
+type = PO
+