diff --git a/prive/themes/spip/alertes.css.html b/prive/themes/spip/alertes.css.html
index e44d9fb17ab207ebc34ef10e8efd04ade9b0f51c..167b7cc51426c8d79647ca3e993dc475473a878f 100644
--- a/prive/themes/spip/alertes.css.html
+++ b/prive/themes/spip/alertes.css.html
@@ -17,7 +17,7 @@
 
 	Markup :
 
-	.msg-alert[.type][.simple]
+	.msg-alert.type?.simple?
 	  .msg-alert__heading
 	  .msg-alert__text