diff --git a/static/grenoble/_vars.scss b/static/grenoble/_vars.scss
index 401cc77e..f65a97b4 100644
--- a/static/grenoble/_vars.scss
+++ b/static/grenoble/_vars.scss
@@ -3,4 +3,6 @@ $primary-color: #175F83;
 $button-background: $primary-color;
 $button-color: white;
 
+$link-decoration: underline;
+
 @import '../izi-ici/vars';