diff --git a/tox.ini b/tox.ini
index 93edb1daa..002b018f9 100644
--- a/tox.ini
+++ b/tox.ini
@@ -150,7 +150,7 @@ deps =
   psycopg2-binary<2.9
 commands =
     ./getlasso3.sh
-    ./authentic2-ctl makemessages
+    ./authentic2-ctl makemessages -l fr
     ./authentic2-ctl compilemessages