diff --git a/tests.toml b/tests.toml
index 17b2039..243682c 100644
--- a/tests.toml
+++ b/tests.toml
@@ -5,7 +5,7 @@ test_format = 1.0
     # Default args to use for install
     # -------------------------------
     
-    args.language = "fr_FR"
+    args.language = "fr-FR"
 
     # ------------
     # Tests to run