diff --git a/locale/po/es_ES.po b/locale/po/es_ES.po
index b2fa98f5d..b714c0e20 100644
--- a/locale/po/es_ES.po
+++ b/locale/po/es_ES.po
@@ -11,7 +11,7 @@ msgstr ""
 "PO-Revision-Date: 2024-09-01 18:27+0200\n"
 "Last-Translator: Northwestern Software <info@es-de.org>\n"
 "Language-Team: Español (España) <info@es-de.org>\n"
-"Language: es\n"
+"Language: es_ES\n"
 "MIME-Version: 1.0\n"
 "Content-Type: text/plain; charset=UTF-8\n"
 "Content-Transfer-Encoding: 8bit\n"