diff --git a/.tx/config b/.tx/config
index 9c3fdb2ac1145523308ee25fbbadaf5acc9ca5f5..2775609f4a9f3eab767f2ca953e6e2f44ad89b88 100644
--- a/.tx/config
+++ b/.tx/config
@@ -3,5 +3,6 @@ host = https://www.transifex.com
 
 [fusiondirectory-develop.fusiondirectory-core]
 file_filter = locale/<lang>/fusiondirectory.po
+source_file = locale/fusiondirectory.po
 source_lang = en