diff --git a/vikunja/docker-compose.yml b/vikunja/docker-compose.yml
index c570496..dd59270 100644
--- a/vikunja/docker-compose.yml
+++ b/vikunja/docker-compose.yml
@@ -18,7 +18,7 @@ services:
       VIKUNJA_DEFAULTSETTINGS_DISCOVERABLE_BY_NAME: ${VIKUNJA_DEFAULTSETTINGS_DISCOVERABLE_BY_NAME:-true}
       VIKUNJA_DEFAULTSETTINGS_DISCOVERABLE_BY_EMAIL: ${VIKUNJA_DEFAULTSETTINGS_DISCOVERABLE_BY_EMAIL:-true}
       VIKUNJA_DEFAULTSETTINGS_WEEK_START: ${VIKUNJA_DEFAULTSETTINGS_WEEK_START:-1}
-      VIKUNJA_DEFAULTSETTINGS_LANGUAGE: ${VIKUNJA_DEFAULTSETTINGS_LANGUAGE:-fr}
+      VIKUNJA_DEFAULTSETTINGS_LANGUAGE: ${VIKUNJA_DEFAULTSETTINGS_LANGUAGE:-fr-FR}
       VIKUNJA_DEFAULTSETTINGS_TIMEZONE: ${VIKUNJA_DEFAULTSETTINGS_TIMEZONE:-Europe/Paris}
 
       VIKUNJA_FILES_BASEPATH: ${VIKUNJA_FILES_BASEPATH:-./files}